LS4 Performance - 07 impala SS with dioblo sport?

Hi everyone,
Will the diablo sport tuner work on the 07 impala SS? on the diablo sport website it only lists the tuner available for the 06 impala SS?
I know its been discussed before, but whats the final word on the topic?
thank you as always

i would call them to see, perhaps they havent updated their website in a little while?

No, there is no Predator or support for the '07 Impala/Monte SS's at this point - due to the computers being different from the 06's.

Has anyone used this for their Imp/MC yet?

If so, please post your thoughts on if you were really able to tell a difference.

No, there is no Predator or support for the '07 Impala/Monte SS's at this point - due to the computers being different from the 06's.

x2 - I just read an article in GMHTP this past weekend confirming new ECM

Has anyone used this for their Imp/MC yet?

If so, please post your thoughts on if you were really able to tell a difference.

yes, and hell yes

;)

quicker throttle response, faster acceleration, better mileage, no more 4 cyl mode - always runnin' on all 8 now :)

and it will get even better once they have the tranny support finished up - then we get to adjust the tranny parameters such as TM, shift points, firmness, how quick it shifts, etc etc...

again though, this is for the 06's.... there is nothing out yet for the 07's...

Diablosport does say though that they are planning on coming out with one for the 2007's...

Well, it's nice to hear good reviews on this unit...seeing as how a few of us should be receiving one over the next few days.

06MonteSS...have you tweaked anything beyond installing the Hi-Po, non-DoD, tune? Have you tried to get your FT's in line with where they should be?

yes sir... I installed the Diablo Tune No Dod performance tune - which is made for 93 octane fuel.

I was better than stock just by itself, then after a while I started playing around with logging the real time data, reading up a lot on a bunch of forums, and got comfortable enough to try playing around with some parameters.

Come to find out, after installing the CAI, I was running lean - getting about +6 - +7 ltft. So, I modified the No DOD tune and set the injector slope to -5%, and the PE (WOT) ranges I set to +3%. It's even better than the canned tune settings now with these changes, since the fuel trims are all in line. And with the PE ranges set to +3%, my O2 voltage is at .88xx - which is safe until I can get on a dyno or at least buy a wideband to accurately check the WOT AFR.

Now she runs like a beast!!

Let me know if you have any questions when you get yours, I'll be more than happy to help ya out.

I am sure I will need some help when mine arrives. I just got the 160* thermo in today and in a few days the tuner should be here. Tomorrow I am doing front rotors and ceramic pads.

-Mike

no problem - I'll be happy to help when/where I can.

you can also register for Diablosport.com's support forums if there's something I can't help with: http://www.diablosport.com/index.php?module=pnphpbb2

yes sir... I installed the Diablo Tune No Dod performance tune - which is made for 93 octane fuel.

I was better than stock just by itself, then after a while I started playing around with logging the real time data, reading up a lot on a bunch of forums, and got comfortable enough to try playing around with some parameters.

Come to find out, after installing the CAI, I was running lean - getting about +6 - +7 ltft. So, I modified the No DOD tune and set the injector slope to -5%, and the PE (WOT) ranges I set to +3%. It's even better than the canned tune settings now with these changes, since the fuel trims are all in line. And with the PE ranges set to +3%, my O2 voltage is at .88xx - which is safe until I can get on a dyno or at least buy a wideband to accurately check the WOT AFR.

Now she runs like a beast!!

Let me know if you have any questions when you get yours, I'll be more than happy to help ya out.

Ok.... the only acronym I understood in all of that is CAI.

LOL - sorry...

LTFT - long term fuel trim -- the ECM adjusts these to keep the cruising AFR stoich at about 14.75.

AFR - Air/Fuel Ratio

ECM - Engine Control Module

PE - Power Enrichment - a table the ECM uses for fueling / amount of fuel to pump when you're at WOT

WOT - Wide Open Throttle

O2 - aka NBO2 - the narrow-band oxygen sensors


also, once you guys start logging, you'll notice that we don't have a "Bank 2" - since our stuff all comes together into 1 (no true duals here). so, your ltft bank 2 readings will always be -100, O2 readings for bank 2 will always be 0, etc etc - it's normal, don't be alarmed like I was at first! LOL until I found this info out myself... and you only want to log the O2 Bank 1 Sensor 1 - not sensor 2... sensor 1 is the one before the cat and sensor 2 os after cat. Sensor 1 is the one we want to use to get us close at WOT by reading the millivolts it's putting out.

and you don't have to log EVERYTHING - if you do, you'll only get a log of about 6 minutes - and the sampling rate is GREATLY reduced.

anyway, I'm getting carried away - LOL... Once you get into it, I can letcha know what to log and look for, adjust, etc etc.

Have fun!!

-Lew

p.s. - also keep in mind that we don't have any support to be able to modify anything as far as the tranny goes yet, but they are working on it and we will have it as a free downloadable update in the near future.

Here's some general info on the adjustable parameters:

http://diablosport.com/index.php?module=htmlpages&func=display&pid=98

Please note, not all parameters are available for all Predator models or vehicles...

Thanks for the low down. This is going to date me, but the last engine i even messed with was a 'Reliant' style engine in my '90 Plymouth Laser.

Well, it's nice to hear good reviews on this unit...seeing as how a few of us should be receiving one over the next few days.

06MonteSS...have you tweaked anything beyond installing the Hi-Po, non-DoD, tune? Have you tried to get your FT's in line with where they should be?Ha, you must not know Lewis, he is the fuel trim master!

As stated here elsewhere, we do not support the 07s yet, but will be in the future.
06MonteSS is a great source of info as far as using/modifying the tune with the Predator, and he doesn't mind typing like I do, lol!

If any of you guys have any specific questions regarding the Predator or any of its features, let me or Lewis know, and we will get you squared away.

Thanks
Mike

yes sir... I installed the Diablo Tune No Dod performance tune - which is made for 93 octane fuel.

I was better than stock just by itself, then after a while I started playing around with logging the real time data, reading up a lot on a bunch of forums, and got comfortable enough to try playing around with some parameters.

Come to find out, after installing the CAI, I was running lean - getting about +6 - +7 ltft. So, I modified the No DOD tune and set the injector slope to -5%, and the PE (WOT) ranges I set to +3%. It's even better than the canned tune settings now with these changes, since the fuel trims are all in line. And with the PE ranges set to +3%, my O2 voltage is at .88xx - which is safe until I can get on a dyno or at least buy a wideband to accurately check the WOT AFR.

Now she runs like a beast!!

Let me know if you have any questions when you get yours, I'll be more than happy to help ya out.

I can guarantee i'm having an issue with the K&N, too...can't wait until the Diablo arrives just to be able to get the FT's straightened out.

yup - we'll getcha there! ;)

yup - we'll getcha there! ;)

What does your A/F from the logs show? I think its called equivalency when selecting from the list, but it shows the A/F. My stock had 12.19 as the lowest under WOT. The Diablo PT comes in at 12.39. I'm not sure which way to adjust it. I had the same + trims with my CAI box and have the trims close enough for me.

correct... the AFR is in the log is shown as Equivalence Ratio / AFR. I like to save the logs out as the excel .csv files - makes it much easier to go through the numbers for everything. Mine generally show 12.36 - 12.54 at WOT with an O2 reading of .8811 to .8854.

Also, that AFR at WOT is really only an "inferred" AFR - meaning that it's what the ECM is expecting and commanding it to be - but it's not necessarily what it really is. The only way to know for sure what it actually is, is to use a wideband.

Since that logged AFR is just a guesstimate on the computers part, and if you don't have a wideband, we can generally go by the stock O2 sensor to get us in the safe ballpark.

You want to see the O2 Bank 1 Sensor 1 voltage at WOT, and you want it between .88xx and .90xx - the higher it is, the richer it is - but if you don't have a wideband to dial it in properly, then this will keep it safe so you don't blow up the motor by being too lean when you go WOT.

Also, when you say you have the trims "close enough" - how close is that? Do they go down to and lock at 0 when you're WOT?? They should. If they're positive at WOT, then that means the ECM is adding that much more fuel on TOP of the fuel that the PE table is already dumping in.

If your ltft's ARE at 0 when you go WOT, and you're O2 voltage is not in the previously mentioned range - then you can add or subtract in the PE ranges to get it in there. But, you want to make sure your ltft's are in line during normal cruise and locking at 0 at WOT first, because if not - those will affect the WOT fueling and throw it off.

Ha, you must not know Lewis, he is the fuel trim master!

As stated here elsewhere, we do not support the 07s yet, but will be in the future.
06MonteSS is a great source of info as far as using/modifying the tune with the Predator, and he doesn't mind typing like I do, lol!

If any of you guys have any specific questions regarding the Predator or any of its features, let me or Lewis know, and we will get you squared away.

Thanks
Mike

Any idea when the tranny side will be ready for us? I have a laptop and trying to decide between this and HPTuners. Pretty much the same price but with HPTuners you can adjust the tranny side of the house right now. I like your products but I can't justify getting it to wait another 6 months or more to be able to play with the tranny also. I will be getting one or the other in the next month maybe the end of april the latest. I know alot of GXPs on clubgp are about the same way. "Why not buy something thats good to go right now and proven instead of waiting for them to finish with theirs".
Tate

there is currently no ETA on when the tranny support will be available for us to download the update, but I do know from talking with Mike that they ARE working on it right now and will begin testing soon.

Well, it's nice to hear good reviews on this unit...seeing as how a few of us should be receiving one over the next few days.

So, did anyone get theirs yet and start playing??

Nope. CORNY should be getting his today...the rest of us Monday or Tuesday. Doesn't matter to me, i'm still without my ****ing car!

yeah, been posting to/with Corny over at diablosport.com's forums - gettin' him squared away on what to download from the site and stuff.

http://diablosport.com/index.php?name=PNphpBB2&file=viewtopic&t=467

What are they still doing to your car??

yeah, been posting to/with Corny over at diablosport.com's forums - gettin' him squared away on what to download from the site and stuff.

http://diablosport.com/index.php?name=PNphpBB2&file=viewtopic&t=467

What are they still doing to your car??

Still waiting on special parts for the Keyless Entry system update. For some reason, they never got some adapter(s) that was supposed to come in the kit and it's now on national backorder...lucky for me :eyes: It never fails...no matter what the problem is, it's never fixed the first time or within the expected amount of time. It went in for the power steering line, which was, of course, on backorder. I had them do the keyless at that time too...and then they found this issue :bang:

Hey 06MonteSS;
Have been reading you posts on the Diablo "tuneable" parameters of the Predator (injector slopes, ltft's, the power enrichment, ect.) with much interest. I have the Predator for my MCSS as well but haven't tried to do any of the logging of my cars performance and changing of any of the parameters yet (probably cuz I haven't sat down yet to try to figure out how this whole thing works), and have been trying to gague from your posts how happy you are with the manual changes you have been making over the stock tunes the unit comes with. I have never claimed to be the coldest beer in the fridge and sometimes am a bit slow on the uptake, so let me just ask you this in black and white. Have you seen a very "noticable" increase in performance with the manual changes you have made vs. the canned tunes the Predator comes with that make it worth the time to go thru all the things it takes to do the "modifications" or are the canned tunes just about as good as anything? Don't get me wrong, don't mind going thru the stuff to find that extra performance, just want to make sure it's going to be worth it first.

X2

Good ? gulfstreamcpt...

-Mike

yes, very noticable changes over the canned tune - better/quicker throttle response, pulls harder, accelerates faster, better gas mileage.

do some logging and see where your ltft's are at, then we can go from there.

you'll want to monitor air/fuel ratio, Commanded throttle position, engine speed, long term fuel trims bank 1, short term fuel trims bank 1, Oxygen Sensor Bank 1 Sensor 1, total knock spark retard.

When logging, you want to drive at normal/cruise speeds.

After you do a log or 2, if you want - post a link to the log and I can take a look at it for ya.

Hey 06MonteSS;
Thanx for the response. I will be anxious to see the difference "customizing" these tunes does. Thought they were pretty good right out of the tuner, but if there's better to be had I'm all for it!!! I will most likely take you up on your offer to take a look at my logs when I can get them posted and to get your advice on what is best to do from there; sure appreciate your offer. Now, just hope I didn't drink those brain cells away that I need to figure out that logging procedure.

So, did anyone get theirs yet and start playing??

I got an e-mail from UPS stating mine was rescheduled due to a train being late (never heard that one before). It's supposed to come Monday, but I'm out of town all week for work so I can't do anything with it until next weekend :bang: This is gona be one long week waiting for next weekend....

Sorry to hear that PGB...I won't be getting mine until tomorrow. And like i said before, i'll be able to look at it...that's about it...until i get my car back.

Hmmm...i wonder if i can load a tune into the Uplander i have and fry the PCM so that i can get a new car. :eyes:

:lol:

I still don't know why someone in Boston got theirs from Cali before i got mine in WNY... :( I swear, if i can get s**t on, it happens, no matter what!

06MonteSS what do you adjust to change the LTFT?I looked on diablo's website and they said
Positive long term fuel trims For a positive value you subtract that value in percent in the predator injector slope. It is also recommended to lean both fuel tables by the same percentage.I know the injector slope part but what fuel tables? I drove just like they said and got a average of 11.72LTFT so I would go -12% right?

DAMN!! 11.72 is high - you're running lean... You need to adjust the injector slope - it's under the modify menu - injectors or injection system I think it is - then when you go in there there's injector slope.

I would go -6% to start - drive for a couple days and then take another log and see where you're at. you want to get between -2 and +2.

like I mentioned in another thread, if you go too much, you'll make yourself too rich, which will affect your engine load and thus the tranny response/shifting - making it bog and lose power.

get those dialed in first then we can talk about the PE fueling.


EDIT: oh, before starting to log, make sure your car is up to operating temps first - drive for 20 mins or so and then start to log.

I drove just like they said and got a average of 11.72LTFT so I would go -12% right?

You running a CAI or other Intake? Stock?

K&N replacement filter thats all.

wow, and it's running THAT lean?? damn... even with my CAI mine was only around +7 ltfts.

Interesting... I should have done a log first with the stock box and drop-in filter I had in there...

EDIT: oh, before starting to log, make sure your car is up to operating temps first - drive for 20 mins or so and then start to log.

I drove a good 30 min then did a log and it was high so 5 mins later I did another one on a flat straight road in cruise control at 55mph and got a steady 11.72LTFT.

I will do what you said and get it in,I just installed the no dod tune about an hour before the log so I don't know if that would make a difference.

yeah, it could. drive for a day or two and do another log and see where the ltft settled in at.

what parameters are you logging?

what parameters are you logging?

I did a full log of all parameters.

k, don't need to do all that - plus it reduces your sampling rate, and doesn't log very long at all, probably not long enough - about 6-8 minutes doing all of them.

you want:

air/fuel ratio
commanded throttle position
engine speed
long term fuel trim bank 1
oxygen sensor bank 1 sensor 1
short term fuel trim bank 1
spark advance
total knock spark retard

I think that's all I log - I don't have my stuff in front of me.

anyway, logging that you'll be able to get a good 20 minute log or so, with a better/quicker sampling rate.

thank you I'll do that the next couple of days.

I adjusted my slope -10% and have driven it a couple of times and it staying at .78 at cruise and -2.34 to + 2.34 on normal driving,is that good enough?

And 24mpg vs 19.5 mpg thats a big increase.

yup, you're there...

get those dialed in first then we can talk about the PE fueling.

Where is a good spot to start for getting the most power and still be safe?

I adjusted my slope -10% and have driven it a couple of times and it staying at .78 at cruise and -2.34 to + 2.34 on normal driving,is that good enough?

And 24mpg vs 19.5 mpg thats a big increase.

Boy, wouldn't THAT be nice! A 20% increase would bring me to...13.4mpg :eyes:

...But that's negated by laying the smackdown to any and all other vehicles in the area :)

kpssmonte, is that with the DoD or non-DoD tune? How noticeable is the surge if it's the DoD tune?

Boy, wouldn't THAT be nice! A 20% increase would bring me to...13.4mpg

Are you serious? I got 24mpg on back roads avg. speed 40mph and wot 3-4 times.

Where is a good spot to start for getting the most power and still be safe?

k, you want to do a log where you can safely go WOT at least twice - and be sure to log the same parameters as before.

when you're done, you want to look at the Oxygen Sensor Voltage Bank 1 Sensor 1 reading - you want it somewhere between .88x and .910 to be safe.


How noticeable is the surge if it's the DoD tune?

it's noticable on mine, and gets annoying quick... that's why I run the No DOD tune.

it's noticable on mine, and gets annoying quick... that's why I run the No DOD tune.

Did you install the most recent update I think 07, The newest update made the dod operation much smoother on mine still not as good as stock but close.

it's noticable on mine, and gets annoying quick... that's why I run the No DOD tune.

I hope Diable takes notice of other people having the 4 to 8 surge. When I had spoken to Johan a long time ago, he had not heard anyone else having the issue. I hope when they come out with trans support, this issue can go away for good.

My MPG stinks compared to you all and I had switched back to 93 w/DOD to get the MPG gain but recently went back to stock due to the surge. The WOT 1-2 shift is actually firmer stock, but remember someone explaining why since they couldn't talk to the TCM.

They have a good product and I can;t wait until all this is behind us.

Are you serious? I got 24mpg on back roads avg. speed 40mph and wot 3-4 times.

Unfortunately, i'm quite serious. While i reset my DIC after just about each fillup, i think my lifetime average is around 11mpg. All hard, city, stop-n-go driving...maybe 1/10mi at a time. I believe my average speed is generally 19mph or so.

And now i know it's not my car that is messed up. I'm driving an Uplander (chevy minivan) while the Imp is at the dealer (day 12 now) and getting 11.6mpg. It averaged 19.6 (lifetime) over 30,000mi until i got it. I drive this POS 6cyl like i do my car and thats where i am.

[the surge is] noticable on mine, and gets annoying quick... that's why I run the No DOD tune.

God ****it i need my car! Calling the dealer (again).

Did you install the most recent update I think 07, The newest update made the dod operation much smoother on mine still not as good as stock but close.

the latest tune (8r07) doesn't have any tune changes or updates - as is mentioned on their download page. It's an internal tool fix to address an issue of the screen blanking out on some of the mustang units, but they applied the fix across the board on all their units so it won't happen to any others.

What version did you have before updating to the 8r07? because after one of their initial releases, they did come out with another update that fixed the DOD surge a little more - so depending on which revision you started out at, you probably just got that initial fix which is why it feels like it did something - but it's still there.

I believe 8r04 was the last update that had any actual tune updates in it for our cars.

8r05 is when they added the SSR tunes back to the unit, 8r06 was a DTC code clearing fix, and 8r07 is the latest internal fix.

Just wondering...Can this be used as a diagnostic or code clearing tool for any other OBDII vehicles (besides the obvious ones listed for the u7191)?

yes, it's supposed to be able to read any other GM vehicle's codes and also log data...

I personally haven't tried it yet though, but now that you mention it - I can give it a whirl on the wife's Equinox and check it out.

What version did you have before updating to the 8r07? because after one of their initial releases, they did come out with another update that fixed the DOD surge a little more - so depending on which revision you started out at, you probably just got that initial fix which is why it feels like it did something - but it's still there.

I had the 8r06 with the dod operating jerky, but when I downloaded the 8r07 it was much smoother.Maybe something was wrong with the 8r06 tune or just didn't install correctly.

My OSB1S1 was at .86 WOT, I will tune the PE with my performance meeter to see where the power is,Did you touch the timing?I might bump it up a degree and see if anything happens after I'm done with PE tuning.

yes, it's supposed to be able to read any other GM vehicle's codes and also log data...

I personally haven't tried it yet though, but now that you mention it - I can give it a whirl on the wife's Equinox and check it out.

I'll check the Uplander as well. After checking with the dealer, i won't have the car anytime soon, so i might as well familiarize myself with those options if it is available to do so.

I think it's time i got out the "***k Off" letter to the dealer and began Chapter 2. I held back from sending them the letter in December b/c the sales manager said they'd have my XM up and running by the end of the first quarter, and it's about two weeks away and still no word.

Well I did some logging going 75mph pretty much the whole time and the car is stock. I don't see a box to show the air/fuel ratio on the data viewer though. Am I missing something? Plus I did the 91 octane no DOD tune and I get the same gas mileage which is nice because I don't get that annoying surge.

did you log the air/fuel ratio? in the dataviewer, it's called Equivalence Ratio / AFR

My OSB1S1 was at .86 WOT, I will tune the PE with my performance meeter to see where the power is,Did you touch the timing?I might bump it up a degree and see if anything happens after I'm done with PE tuning.

yeah, you can go about +4% in both PE ranges. I haven't touched the timing at all. It only lets you adjust timing for the WOT ranges though...

In your logs, does your ltft lock at 0 when you go WOT??

Are you serious? I got 24mpg on back roads avg. speed 40mph and wot 3-4 times.

WOW, that is good!

Do you run DOD tune, right?

Alright I got it. Sorry if I am going over things that were discussed before. But is the best way to log to go 55mph and give it wide open throttle atleast once? 06monte you should have Diablo start paying you for your tech support. :)

no problem about going over things - we all start somewhere, I did! Was only a few months ago when I was asking everyone all the questions... it doesn't take long to get it.

They say in the book to hold it at 55 to get the normal driving/cruise ltft numbers, I usually do 65-70 just to keep up with traffic (and I STILL get passed!). I don't know how much of a difference the speed makes, if any.

I try to do WOT runs from as slow a roll as possible to get it to go through 1,2,3 as far through the rpm's as road space/traffic permits - I have a highway on-ramp by me that is pretty good for that - If I time it right, I can get on it and floor it and reach 100 in 3rd by the time I'm at the top. A WOT run from a dead-stop would be ideal, but that's not possible in my area. But, like you said - I've also done it on the highway when there's room - I slow down to about 55-60, then punch it and go. I actually did that tonight on the way home. ;)

06MonteSS,

With your custom tune w/o DOD, what average mpg are you getting?

I'm getting 20mpg... that's with 50/50 town/highway driving during the week, and all town driving on weekends - with the occasional fun blasts! ;)

I'll check the Uplander as well. After checking with the dealer, i won't have the car anytime soon, so i might as well familiarize myself with those options if it is available to do so.

when you switch the Predator between vehicles, before you go to log anything, do the Live Table Reset. This enables the unit to read the current vehicles setup as far as what it's able to log for that particular vehicle. It'll also prompt you to select the type of tranny - auto or manual - so it knows what logging parameters to load up.

I'm getting 20mpg... that's with 50/50 town/highway driving during the week, and all town driving on weekends - with the occasional fun blasts! ;)

You know what is funny? You are getting better mileage than me(17mpg at 5000ft) with stock PCM(of course w/DOD). My predator is coming soon!

I have Dashhawk and it tells me my LTFT is around 4-5% on normal driving.

I have K&N Aircharger and Flowmaster 40.... so my tune is off for sure.

yeah, after I modified the Diablo No DOD tune, my mileage is better than what I was getting stock with mine too, with the DOD.

My CAI made me lean too, about +7-ish. If you're consistently getting +4 to +5 for ltft at normal driving/cruise, when you get your Predator you can adjust your injector slope to -4%, and do both PE ranges to +3% and that should put you right on the mark.

How do you like the DashHawk?? I've been looking at it but not sure if it's worth it or not. Does it do a lot of stuff that you would use all the time, or once you see the stuff you need you don't need to use it again?

of course, don't forget... with the warm weather coming, that will throw off your fuel trims - so as it gets warmer you'll want to monitor them and adjust accordingly.

Warmer air means less dense and less volume of air being sucked in, so it'll make ya run richer which would/could lead to a loss of some power.

In your logs, does your ltft lock at 0 when you go WOT??

yes

Do you run DOD tune, right?

No I'm running the NO DOD tune. I got 22mpg from the factory,I,m in the north central part of md, good air I guess.

http://www.slponline.com/view_product.asp?P=27001T

I want these results! please explain the only 13fwhp increase in the can tune.

No I'm running the NO DOD tune. I got 22mpg from the factory,I,m in the north central part of md, good air I guess.

Oh, yeah I live in 5000ft dusty Reno air. LOL

http://www.slponline.com/view_product.asp?P=27001T

I want these results! please explain the only 13fwhp increase in the can tune.

must be more to unlock in them :lol:

the trucks always gain more... read around diablosport.com's site - they're truck tunes are around 100hp...

they're truck tunes are around 100hp...

In the diesel, but this was the 6.0 gas.I'm guessin the can 6L truck engine tune is about 35hp and 35lbft.Thats what hypertech gives you.

Trucks must come de-tuned from the factory then....100hp tunes, hammer of thor....

of course, don't forget... with the warm weather coming, that will throw off your fuel trims - so as it gets warmer you'll want to monitor them and adjust accordingly.

Warmer air means less dense and less volume of air being sucked in, so it'll make ya run richer which would/could lead to a loss of some power.

while I am running richer - as indicated by the soot in my tips from my ride home yesterday (60* outside) - as it gets warmer we may need to back off the timing too...

going home from work yesterday, it was 60* outside. I did a log and checked it when I got home... my ambient air temp was 66, my intake air temp was 78, and I had KR all over the place - and even throughout the entire WOT blast I did!! :eek2:

I made a slope adjustment this morning before I left for work (went to -6%) - to spray more fuel, so we'll see what that gets me on the way home... it's supposed to be 65* today.... still may have to back off the spark/timing in the WOT ranges as well.

06montess, ever have you car not start?It happened twice today and the second time the force back up that needs a password from diablo tech. did not work and the guy at diablo said I did nothing wrong and It was odd.Now it's getting toaded to the dealer,If i'm lucky it just needs a reflash. :cry:

nope, never had that happen. That is definitely odd, especially since the Diablo tech said you did everything correctly....

Did you ever have a flash that worked flawlessly?? or was this your first time trying it?

so it wouldn't start, then you waited and tried to start it again and it DID start?? and then it wouldn't start again? Have you been noticing if it seems to hesitate when starting lately?? I wonder if it's the bad battery cell syndrome that a few people have encountered - me included. for a couple days my car seemed to hesitate when starting - then one day, nothing! starter wouldn't even click - deader than a doornail. jumped it and drove to the dealer, turned it off - 1 minute later they went to pull it into the shop and it was totally dead. Turned out to be a bad cell in the battery - so they gave me a new one, and better than the original too.

And if your battery isn't fully charged, the tunes won't load/flash into your ECM anyway.

and what's the password for the force reflash?? ;)

How do you like the DashHawk?? I've been looking at it but not sure if it's worth it or not. Does it do a lot of stuff that you would use all the time, or once you see the stuff you need you don't need to use it again?

I like it. It has backlights and all the scanning and trans support too, so I can see if trans is slipping etc etc

It also have 0-60 recorder/measuring and 1/4 mile too. I got 0-60 in 5.9 other day with 5000 ft and being my tuning is off.


Here is parameter:

* Calculated Engine Load
* Engine Coolant Temp (ECT)
* Short Term Fuel Trim Bank 1
* Short Term Fuel Trim Bank 2
* Long Term Fuel Trim Bank 1
* Long Term Fuel Trim Bank 2
* Fuel Pressure (KPA)
* Manifold Absolute Pressure (MAP)
* Engine RPM
* Vehicle Speed
* Timing Advance (Spark)
* Intake Air Temp (IAT)
* Mass Air Flow (MAF)
* Absolute Throttle Position
* O2 Bank 1 Sensor 1
* O2 Bank 1 Sensor 2
* O2 Bank 1 Sensor 3
* O2 Bank 1 Sensor 4
* O2 Bank 2 Sensor 1
* O2 Bank 2 Sensor 2
* O2 Bank 2 Sensor 3
* O2 Bank 2 Sensor 4
* Relative Fuel Pressure
* Diesel Fuel Pressure
* Commanded EGR Duty Cycle
* EGR Error
* Commanded EVAP Purge Duty Cycle
* Fuel Level
* Evap Vapor Pressure
* Barometric Pressure
* Catalyst Temp Bank 1 Sensor 1
* Catalyst Temp Bank 1 Sensor 2
* Catalyst Temp Bank 2 Sensor 1
* Catalyst Temp Bank 2 Sensor 2
* Module Voltage
* Absolute Load
* Commanded Equivalence Ratio
* Relative Throttle Position
* Ambient Air Temp (AAT)
* Absolute Throttle Position B
* Absolute Throttle Position C
* Absolute Pedal Position D
* Absolute Pedal Position E
* Absolute Pedal Position F
* Commanded Throttle Actuator
* BLM Cell #
* Torque Management Spark Retard (Shift)
* Commanded A/F Ratio
* Knock Retard
* Cylinder That Knocked
* Learned Spark
* Oil Pressure (new in v1.0.2!)
* Calculated Vacuum (GM)
* Calculated Air Flow (GM)
* Current Misfire Cyl 1 (GM)
* Current Misfire Cyl 2 (GM)
* Current Misfire Cyl 3 (GM)
* Current Misfire Cyl 4 (GM)
* Current Misfire Cyl 5 (GM)
* Current Misfire Cyl 6 (GM)
* Current Misfire Cyl 7 (GM)
* Current Misfire Cyl 8 (GM)
* Total Misfires (GM)
* History Misfire Cyl 1 (GM)
* History Misfire Cyl 2 (GM)
* History Misfire Cyl 3 (GM)
* History Misfire Cyl 4 (GM)
* History Misfire Cyl 5 (GM)
* History Misfire Cyl 6 (GM)
* History Misfire Cyl 7 (GM)
* History Misfire Cyl 8 (GM)
* Misfire Cycles (GM)
* Desired Throttle Position (GM)
* Pedal Rotation (GM)
* Fan Speed (GM)
* Desired Fan Speed (GM)
* Fan Speed Error % (GM)
* Command Fans 1, 2, 3 ON/OFF
* Command Fuel Trim Reset
* Command Crank Angle Sensor Error (CASE) Relearn

Trans support:

1. Alcohol % in Fuel (Flex Fuel Capable)
2. Fuel Type (Multi-fuel vehicle)
3. OEM (Factory) Wide-Band O2 Sensor Voltage Sensors 1-8 OEM (Factory) Wide-Band O2 Sensor Current 1-8
4. OEM (Factory) Wide-Band O2 Sensor Equivalency Ratio 1-Aux O2 (WB) Long Term Fuel Trim
5. Aux O2 (WB) Short Term Fuel Trim
6. High Range Fuel Pressure (for diesel and direct injected gasoline engines)

# GM Specific Vehicles (if supported by Vehicle)

1. Transmission 1->2 Shift Time
2. Transmission 1->2 Shift Error
3. Transmission 2->3 Shift Time
4. Transmission 2->3 Shift Error
5. Transmission 3->4 Shift Time
6. Transmission 3->4 Shift Error
7. Transmission Last Shift Time
8. Torque Converter Clutch (TCC) Duty Cycle %
9. Torque Converter Clutch (TCC) Slip RPM
10. Transmission Input Shaft Speed RPM
11. Transmission Output Shaft Speed RPM
12. Current Gear Status
13. Transmission Oil Temperature
14. Valve Body Force Motor Current Amps
15. Valve Body Force Motor Duty Cycle %

Did you ever have a flash that worked flawlessly?? or was this your first time trying it?

I've done a dozen flash's tring to get the most hp,and have done it all the same except today I forgot the performance meeter was pluged in to the cigaret lighter,that caused the first forced backup upload,my fault.Then I was extra carefull the next couple times and then out of nowhere agian happened.Now the forced backup wont even work tried a couple of times.

the code changes every time the programmer gives you a different key which needs a different code each time to keep us from using it whenever.

Sorry, but what is this "flash" thing y'all are talking about w/the diablo? :confused: :emb: :confused:

Sorry, but what is this "flash" thing y'all are talking about w/the diablo?

the force back up option is in diag,troubleshooting,and the back up,flashing the ecm is changing the programing.

I wonder if it's the bad battery cell syndrome that a few people have encountered - me included. for a couple days my car seemed to hesitate when starting - then one day, nothing! starter wouldn't even click - deader than a doornail. jumped it and drove to the dealer, turned it off - 1 minute later they went to pull it into the shop and it was totally dead. Turned out to be a bad cell in the battery - so they gave me a new one, and better than the original too.

And if your battery isn't fully charged, the tunes won't load/flash into your ECM anyway.Excellent point here...I didn't even think about that.
kpssmonte, if you were flashing the car several times today, and the battery was not healthy, you may have run it down to where it was too low to flash the PCM.
I do hope this was the case.
Keep us informed as to what the dealer says.

Thanks
Mike

the force back up option is in diag,troubleshooting,and the back up,flashing the ecm is changing the programing.

Okay, I guess I should have asked about the forced backup. What exactly is that and why would you need to do it? when your battery dies? :confused: :emb: Thanks. :)

in case something goes "wrong" with doing a tune, the tool can (try to) force your original backup back to your car. but you need to call Diablosport to do it, because there is a code that needs to be entered in before it'll letcha do it.

and apparently, that code is randomized each time, so there's not just one code that can be used all the time and distributed around the 'net. If it gets to that point, Diablo probably wants to talk to you anyway to see what you were or were not doing when things got ugly.

But if your battery dies or is too low, you won't be able to do anything anyway.


I also replied to all your questions over on the diablosport.com forums... ;)

I've done a dozen flash's tring to get the most hp,and have done it all the same except today I forgot the performance meeter was pluged in to the cigaret lighter,that caused the first forced backup upload,my fault.Then I was extra carefull the next couple times and then out of nowhere agian happened.Now the forced backup wont even work tried a couple of times.

if your battery was still good - did you try disconnecting your negative battery cable for about 20 minutes?? then you want to turn the headlight switch on and press the brake pedal a couple times - that will get rid of any stored/residual power in the system. (be sure to turn the lights back off, or put on auto) then reconnect it quickly to avoid any arcing from the post to the cable.

I and a couple other's I've helped with this trick had a couple annomolies that occured to our cars, and after disconnecting the neg. battery cable for a bit and then putting it back on - everything was fine and working normal again.

Hey 06MonteSS,
Alright son, I've got a log that I have done, but you'll have to walk me thru the desiphering of what all this stuff means. And actually, I would post the log on here to you could look at it, but I have no idea how to get it off of the dataviewer onto this website so you can look at it. (Not the most computer savy person there has ever been.) I would just but the numbers I got down here in a post, but as I look at the log, the numbers for the parameters I chosen are just for that particular second in the log. I thought the dataviewer would give an average of all the parameters for the whole 20min. of the log. Am I looking at this right or am I all screwed up? Let me know who to read these numbers or how to get that log on here (step by step if you could) and I'll post it.

Thanx

Hey gulf... just sent you a PM...

also, let me know what tune you have loaded in your car, and if you've made any adjustments to the injector slope or PE yet.

thanks!
-Lew

when you switch the Predator between vehicles, before you go to log anything, do the Live Table Reset. This enables the unit to read the current vehicles setup as far as what it's able to log for that particular vehicle. It'll also prompt you to select the type of tranny - auto or manual - so it knows what logging parameters to load up.

Interesting. It kept saying "vehicle not responding"...

However, i was able to check for codes...none found.

Excellent point here...I didn't even think about that.
kpssmonte, if you were flashing the car several times today, and the battery was not healthy, you may have run it down to where it was too low to flash the PCM.

The battery didn't seem any weaker, but could have been just slightly discarged,I drove 5-10 min after each tune I don't know if that is enough to keep the battery fully charged,a loose connection would mess me up to.

Interesting. It kept saying "vehicle not responding"...

However, i was able to check for codes...none found.

I haven't had a chance to try it on the wife's Equinox yet...

did you do it with the car started up??

when you're doing the codes and logging, you can/should have the car on and running...

other than that, I can't think of any other reason why it wouldn't work... unless it can't LOG other cars and ONLY reads codes...

and for codes, it only reads the Engine ECM codes at the moment anyway, since there's no tranny support in these units yet. so any codes thrown by any other computer/system in the car won't be readable/detectable anyway.

Hey gulf... just sent you a PM...

also, let me know what tune you have loaded in your car, and if you've made any adjustments to the injector slope or PE yet.

thanks!
-Lew

Hey 06 Monte;
Sent of the log a couple of minutes ago. As stated in the email, running the Diablo tune with DOD and no other changes to the PCM from stock. Am running a K&N CAI as well. Anxious to hear back from ya here, other email, or by phone to see what you think.

Thanx again

Hey 06 Monte;
Sent of the log a couple of minutes ago. As stated in the email, running the Diablo tune with DOD and no other changes to the PCM from stock. Am running a K&N CAI as well. Anxious to hear back from ya here, other email, or by phone to see what you think.

Thanx again

I've been busy going through your log and replying to your email, so I didn't see this in time :lol:... "YOU'VE GOT MAIL!"

so depending on which place you check first, here's the reply I sent ya:

================================================

took a look at your log - did some filtering on it, and yeah - you got one WOT
run in there... I sectioned it out - if you open this log file and do a search
for "wide open" (without the quotes), you'll see where the WOT starts and ends.

Also, since you are running the tune WITH the DOD still enabled, that is
throwing off the normal cruise numbers when it switches to 4 cyl mode. What you
can do is, cruise around in 3 instead of D - that way the DOD won't kick in at
all.

But, judging by the WOT run that was in the log - your ltft is +1.563 at WOT -
which should actually lock at 0... and your O2 reading is low .85x, .84x...
so, if you haven't done any modifications to the tune at all yet, here's what I
would do:

for Injector Slope, go -2% and for the Power Enrichment ranges, go to +4% in
both RPM ranges.

If you have made changes to the tune already, add those adjustments to them -
i.e. if you already have -4% for injector slope, make it -6%... if you already
have +3% for the Power Enrichment (PE) RPM ranges, make it +7%.

Drive for a day or 2 with those new settings and then do another log and let's
see where you're at.

Again, when you do the log, drive around in 3 instead of D, that way the DOD
won't kick in and skew the numbers. Or, you can install the No DOD tune with
the adjustments I mentioned above and then drive/log while in D.

and yes, be sure get a couple WOT runs in the next log so we can see where your O2 reading is at after these adjustments have been made.

I'll be talkin' to ya...

Actually,

DOD kicks in gear 3 too. I was looking at Dashhawk and my mileage on DIC.

When dashhawk tells me I'm still in 3rd gear, the instant mileage went from 17 to 30. So, that means DOD still kicks in 3rd gear. D(4th gear) is just overdrive...You can live without anyways....

So I think he needs to load non-DOD tune???

no it doesn't, not on the Monte's anyway... dashhawk is wrong then.. you have to be in D, be going between 25 and 75 mph for DOD to work... I can look for the specs if you like... but don't go by the dashhawk... go by the DIC where it shows you if you're in 8 or 4 cyl mode.

but I am 100% absolutely positive that DOD does not work/kick in if you are in 3... only in D.

DOD kicks in gear 3 too. I was looking at Dashhawk and my mileage on DIC.
Switch the driver info display to show cyl mode and drive in 3 and it should say 8 cyl all the time.

Hey 06MonteSS... just sent you a PM...

Hey Big... just replied... but I'll be back in a bit - I'm in the garage playing around with my MAF and intake...

no it doesn't, not on the Monte's anyway... dashhawk is wrong then.. you have to be in D, be going between 25 and 75 mph for DOD to work... I can look for the specs if you like... but don't go by the dashhawk... go by the DIC where it shows you if you're in 8 or 4 cyl mode.

but I am 100% absolutely positive that DOD does not work/kick in if you are in 3... only in D.

GXP does not show 4 or 8 cyl mode. :cry: I can only find out from instant mpg jump.

well, don't go by that then... cuz that's wrong...

I can see that on my instant economy too, even with DOD disabled - I've got one good stretch of road on my way to and from work that's perfectly level or even a slight/undetectable slope, where either feathering it, or with cruise control on, my DIC instant economy goes from about 19 then on that stretch it goes up to about 28-29.

like I said, you have to be in D, be going between 25 and 75 mph, and no/light engine load for DOD to kick in.

If you drive around in 3, 2, or 1, you're always in V8 mode...

I have also noticed a huge improvement of Instant MPG's. I have 91 no DOD with -3% slope and +3%PE and have seen around a 25% increase at crusing speeds(65-70mph) up from around 21-22mpg to 25-26 with the same driving habbits. For anyone who has the Diablo be sure to do yourself a favor and have some fun with the logs. I am brand new to the tuning scene but might already be hooked with the help of 06MonteSS. I hope this bug doesn't ruin my bank roll with mods I hadn't planned on. I'm going to try to hold out for the 36K warranty to expire before I do anything besides FWI, tune and maybe exhaust.

:)

be back in a few guys... got some stuff goin' on in the garage... (like heat-shielding the MAF housing and intake tube)

I have also noticed a huge improvement of Instant MPG's. I have 91 no DOD with -3% slope and +3%PE and have seen around a 25% increase at crusing speeds(65-70mph) up from around 21-22mpg to 25-26 with the same driving habbits. For anyone who has the Diablo be sure to do yourself a favor and have some fun with the logs. I am brand new to the tuning scene but might already be hooked with the help of 06MonteSS. I hope this bug doesn't ruin my bank roll with mods I hadn't planned on. I'm going to try to hold out for the 36K warranty to expire before I do anything besides FWI, tune and maybe exhaust.

NICE!!! good mileage increase! WOOHOO!! How are you liking the new-found power too??

NICE!!! good mileage increase! WOOHOO!! How are you liking the new-found power too??

Car really does become a beast. It's unreal the amount of pull you gain from a 30mph roll compared to the stock tune.

Hey 06Monte;
Gulfstream here. Been looking at the second log with the improvements you suggusted and am slowly starting to get the hang of this. Here's what I've found. At WOT my air/fuel is pretty much in line, .88x to .90x-.91x most of the time. My short term fuel trims locking in at 0 (I think as they should), but my long term fuel is still sitting around 4.688-5.469. Srill too rich do ya think? Am using the non DOD Diablo tune and the -2% injector slope and the +4 PE. Think maybe try -3 to -4 on the slope and 5-6 on the PE, what do you think?

Hey Gulf... WOT PE looks good... if your ltft at normal driving/cruise is still +4 to +5, I would do another -4 on injector slope... so if you're currently at -2% on injector slope, go to -6% on injector slope. Leave PE alone. Reason being is that since it's already where you want it, the injector slope change will make it spray MORE fuel, so we don't want to add any more to PE.

short term fuel trims will always go to zero at WOT... we need to get the LONG term fuel trim to lock at 0 during WOT.


and just an f.y.i. for everyone... if you're getting positive (+) ltft's... that means you're running LEAN, not rich... you're running lean so the computer is ADDING that much more fuel.

and vice-versa... if you're getting negative (-) ltft's, that means you're running RICH and the computer is subtracting that much fuel...

Hey 06Monte;
Did some more looking at that second log and found something interesting. Started looking at more of the normal/highway cruise parts of the log and if you look at it from line 10,000 to around 13,000 (the numbers in the far left column of the log file I sent you) the ltft's are most all in the negative for quite a long time; anywhere from -4 to -12, and again that's at highway cruise speeds. What do you make of this? Where should the ltft's be at cruise on the highway?

yeah, what's wierd is that you're way negative during normal cruise, but still go +4 and +5 when at WOT, which should lock at zero....

on mine, I'm right between the -2 to +2 range for ltft, and I lock at 0 when I go WOT. My current settings are -6% on injector slope, and +3% for PE in both RPM ranges.

We should reset/clear your fuel trims - sent you an email with info and a reply to yours.

also, set your injector slope to -5% and both RPM ranges in PE to +3%. do the fuel trim reset and go for a ride for a little while.

on your way back home, do a log and I'll bet those ltft numbers are straightened out from the way they were before in that last log you sent me... and let's see where they're at.

ya know what Scott... don't change the slope or pe at all yet - just pull the battery cable to reset/clear the fuel trims and go do another log - I want to see where those ltft numbers come in at.

Because if your ltft's at STILL that negative after, then we'll have to go + on injector slope - cuz right now you're averaging -5% ltft, which is a little low/out of range - we can get it in line though, not to worry...

I have also noticed a huge improvement of Instant MPG's. I have 91 no DOD with -3% slope and +3%PE and have seen around a 25% increase at crusing speeds(65-70mph) up from around 21-22mpg to 25-26 with the same driving habbits. For anyone who has the Diablo be sure to do yourself a favor and have some fun with the logs. I am brand new to the tuning scene but might already be hooked with the help of 06MonteSS. I hope this bug doesn't ruin my bank roll with mods I hadn't planned on. I'm going to try to hold out for the 36K warranty to expire before I do anything besides FWI, tune and maybe exhaust.

Hey Big... since we adjusted your injector slope and PE ranges,, do another log in a day or two and lets see where the ltft numbers are settled in at, and we'll see if any further adjustment is needed to get you any closer.

EDIT: also, was just taking a look at one of the logs you sent me last night - you don't need to log everything - you get a poor sampling rate and a very short log - only about 6-7 minutes - which isn't long enough to really tell anything.

All you need to log is this:

Air/Fuel Ratio
Commanded Throttle Position
Engine Speed
Oxygen Sensor Voltage Bank 1 Sensor 1
Short Term Fuel Trim Bank 1
Long Term Fuel Trim Bank 1
Total Knock Spark Retard

So when you go to do a log, don't select the whole short list, you want to go in and "select from a list" - that way you can select just the above 7 parameters only, and you'll get about a 20-25 minute log with a much better sampling rate, and more useful data. ;)

EDIT #2: K, just looked at one of your other logs that you sent - with just the 7 parameters logged ;) looks like you can probably get a little more response outta her by going to -4% on injector slope, since you're averaging about +3.5.... no change is needed in the PE ranges, those look good.


-Lew

I just installed my 1st tune, but when I did, it didn't ask what kind of transmission I had. When I first got the Predator, I pluged it into the wall, to see if it and the adapter would boot up. When they did, to advance further, it asked for my transmission. I think, more like hope, I answered automatic, but to tell you the truth, I'm not 100% sure. Is there any way to check?

I tried to post this on the Diablosport forums, but everytime I try to pull up the site, I keep geting this Dell/Google search page. Can anyone else pull up the site?

Well, I'm about to take the car out, so we'll see. I hope all is okay.

go into the Options menu - that's where you'll find the "transmission type" selection and you can check/change it.

and Diablo's site is down for maintenance.

Thanks 06MonteSS. :)

Well, all I can say is WOW!!! This thing is definitely worth the money. I couldn't believe how much harder the car pulled. My daughter was in the car w/me and many times before I have gunned it from about 20 mph w/her in it, but today was the first time she's ever said, "Daddy, don't go so fast!" :jest:

I installed the tune w/DOD, so I can't wait to try the non DOD tune (Isn't it supposed to have a little more?). I hardly felt the "surge", and it was only sometimes, not really worth complaining about IMHO.

One last thing. If I didn't know any better, I would swear that my exhaust sounded a little quieter. Is that even possible? I don't know, maybe I'm really used to it now?

Anyway, I'll be doing some logs, then installing my CAI, hopefully this weekend. Later! :)

When it's not in 4cyl mode its a lot quieter. Use the DIC to watch when it switches between 8 to 4 and then back to 8 and you will hear the change.

Hey guys, I need a little help on doing some logs.

Do I start the car B4 plugging in the Diablo, or do I plug it in while the car is running? Does it matter?

Second, can I set what parameters to monitor before I take it to the car, or do I have to do that while I'm in the car, ready to drive around?

Finally, any recommendations on where to place the thing while I'm driving, so it doesn't get in the way?

TIA! :)


Maybe MikesimpalaSS should change the title of this thread to "Diablosport Predator Help." :jest: :jest: :jest:

You can't preselect the parms. I plug mine in before, start the car, select the parms, then wait until I'm ready to start loging before I select Yes when asked if I want to log the data. I put mine pn the pass seat so it's easy to grab and select yes or glance at the real time log.

I plug mine in when the car's already running.... while it's warming up for a couple minutes I go through and select the parameters, get it all set to go, then after driving for about 15-20 mins to bring everything up to temp, I select "Yes" to start/save the log.

Correct, you can't preselect anything - you need to be connected to your car to do anything.

And yes, same as live2ride - passenger seat, etc etc...

Thanks 06MonteSS. :)

Well, all I can say is WOW!!! This thing is definitely worth the money. I couldn't believe how much harder the car pulled. My daughter was in the car w/me and many times before I have gunned it from about 20 mph w/her in it, but today was the first time she's ever said, "Daddy, don't go so fast!" :jest:

Anyway, I'll be doing some logs, then installing my CAI, hopefully this weekend. Later! :)

do it in the reverse order you listed - install the CAI first, then do some logs. The CAI will tend to lean you out. Well, unless you want some before and after logs to compare... (just thought of that) but ultimately, we'll need to adjust the tune for the CAI install.

So install that, do a couple logs, and let's see where you're at.

WoooooHoooooo! Got the car back and all is well! Just uploaded the 91 DoD tune and love it...just gathering some info from the forums right now and downloading some log data to check my FT's...looks to be REAL lean, 10+ for most of the drive home from the dealer with the Stock tune. I'm going out to upload the DIablo tune and filler'up and have some fun til i gotta pick up the wife.

06Monte...expect an eMail to help me understand WTH i logged, LOL. I chose a ton of parameters, not remembering what you recommended, so there will be plenty of data to look through.

Well I'll finally get my monte back tomarrow.They ended up replacing the ECM and had to reprogram everything that has to do with the ECM. :bang: So this time I'll just do the tune where I was at and leave good enough alone for now.I hope the new ECM works with the diablo. :cry:

Well I'll finally get my monte back tomarrow.They ended up replacing the ECM and had to reprogram everything that has to do with the ECM. :bang: So this time I'll just do the tune where I was at and leave good enough alone for now.I hope the new ECM works with the diablo. :cry:

WoW...that would suck if it didn't!

I loaded up the 93 tune (w/DoD) and it's SOOO much better...just haven't been able to let her loose...it decided to ****ing snow now that she's back in the stable. Keeping traction in the snow with Diablo93 is gonna be fun :eyes:

I loaded up the 93 tune (w/DoD) and it's SOOO much better...just haven't been able to let her loose...it decided to ****ing snow now that she's back in the stable. Keeping traction in the snow with Diablo93 is gonna be fun

Yep,4-8inch's here and it was just in the 70's a few days ago.

So correct me if I'm wrong.

Step 1: Measure STFT & LTFT to 0 at WOT. To acomplish this minus slope injector % by positive trims and add slope % for negative trims.

Step 2: O2 Bank 1 Sensor 1 should be between 0.88xx-0.90xx. Not sure how to calculate PE values.

Step 3: After these two adjustments take a 15-20 minute run with the cruise set around 60 and see where the LTFT averages out. You can do this by brinigng the car to idle after the cruise. Value between -2 and 2. Again increase or decrease slope injector % accordingly.

Step 4: Is there anything more we should be aware of besides to see that:

Air/Fuel Ratio between 12-15
Knock Retard to 0

And when the weather warms up we may want to increase the slope injector positive value to offset warmer less dense air.

Step 1: Make sure car is warmed up, then take a cruise set around 60 while logging so you can get an avarage of your LTFT while at speed. Review log. Target LTFT after adjustments is between -2 and 2. Iincrease or decrease injector slope % accordingly. LTFT will vary during different driving so look at average during cruise. If LTFT is -6 set slope to neg 6, then retest. If LTFT +6 then set slop to positave 6.

Step 2: Go log a couple of WOT runs. LTFT should lock to 0 at WOT. I've seen them .7 to 0 to -.7. O2 Bank 1 Sensor 1 should be between 0.88xx-0.90xx during this log. Adjust PE (both ranges) + to richen or raise the value of O2 or - to lower the value or O2.

Step 3: Enjoy.

Equivalence Ration is the value in the log for A/F.

Hey Buffalo... email sent...

and yeah, this snow sucks... got about 9 inches or so here...

Got my car back and uploaded the tune and everything is just the way it should be, and hopefully stay's that way.I probaly wont mess with the diablo again until I get a CAI.

Glad you got it figured out. Running stock with a K&N CAI, i was running about +12 LTFT. Installed the diablo 93 tune, and was at +18...adjusted -12 in the slope and -9 in the PE tables and got the FTs at about 2.

However, i plan to yank the battery cable to clear evenything, as Monte suggests, and then log again.

Unfortunately, the roads are still nasty here...so i'm just sitting here, not playing with my toys. :eyes:

adjusted -12 in the slope and -9 in the PE tables and got the FTs at about 2.

It's amazing how these cars, supposing to be identical as far as motor goes, can have such different needs when it comes to this tuning stuff. I've got to be at -2 on the sople and +6 on the PE to be in a good area. Hey Buffalo, pulling your battery cables will probably be a good idea. My numbers were very different after I did so. You may likely see the same happen. Will most likely make your numbers much more accurate. Not saying your numbers are incorrect now, but you may see different ones after an ECM reset.

glad everyone is getting in to it... it's fun, ain't it??!! ;)

same here Buff as far as the roads.. hell, I just got done now getting my driveway cleared enough to be able to get out! :lol:

and yeah, the battery disconnect to automagically reset the learned values will help. Just drive for a day before taking a log to make sure the new readings have stabilized... you may find that now you are not as far off as you were before and will need to make adjustments to slope and PE as needed.

And Buff, with your PE ranges at -9%, what is your O2 reading at WOT?? that sounds like it'd be pretty lean... although, after the reset, those will probably change anyway.

k, I think I just got caught up on everyone's emails... :lol:

I forgot to mention: The car had been powered down for some time before i even got here back from the dealer. They had just finished the electrical repairs hours before i got her so it may not make THAT big of a difference.

Hmmm... ok, well let's see where we're at with the new logs when you get 'em...

Alrighty...did the reset and ran another log with a couple WOTs. I'm at about .82-83v at WOT right now, so i gotta up the PE, right? (remember, i mistakenly went -9 when i should have gone +). My LTFTs are between -2.3 and +4.6 (but only that high for a very short period. Lew, i send over the file. Let me know what you think...NO RUSH!

I'm also going to clean up the MAF again and do some more logging after i adjust the PE and get the OSB1S1 back in range.

yeah, lemme see the file - I'll run my macro to weed out the low throttle spots, see where you're cruising at and letcha know what adjustments I'd make...

are your current settings for this log still -12 slope and -9 PE ranges???

k, after careful observation of the aforementioned sent log... HOLY CRAP on those O2 values! :lol: get 'em up boy, get 'em up!

so, if that log was done with your settings still at -12 slope and -9 in both PE ranges, here's what I would do:

Injector Slope... keep it at -12% for now. Your ltft averaged out to 1.85... how's the car feel?? sluggish, bogging, shifting ok? more/quicker pickup??

Both RPM ranges for PE.... 0, yes zero because with your injectors set to negative numbers, it tells the computer that they are smaller so in turn they will spray MORE fuel... so spraying that much more fuel should get you pretty damn close to where we want to be with the O2.

by going negative in the PE ranges, you effectively took out the extra fuel you added from adjusting the slope... so you were lean to start with, then richened it up at cruise by adjusting the slope to negative numbers, but then you leaned it back out at WOT by also going negative in PE.

So, try the 0 PE ranges and let's see how that looks... we should be just about there.

I'll be waiting... ;)

another satisfied fellow LS4 owner... some excerpts from Buffalo's email I received...
================================================== ======

I went out and went +4 on the PE and she's at .89v at WOT. She's running GREAT right now... I'll check out the average FTs...should definitely be in the 0-1+ range
now.

She is an absolute beast now. From a light at an inclined onramp to the
expressway, I dropped the hammer, had TC kick in 3 times, and STILL was at
110-120 before I knew it....

Thanks for all of your help!
WOOHOO!!

:cheers: :)

I tried the 91 octane with DOD tune today and it really felt bad. The surge from 4 to 8 is unbearable. I thought the factory one was bad but this was worse. The no DOD tune is great though.

maybe something is wrong with yours, because the factory tune/DOD switch is totally undetectable aside from the exhaust note... at least in mine...

but I agree with you about the Diablo tune, that surge was annoying.

I have to agree on the 91 DOD tune. I installed it yesterday and drove around some. This thing pulls a lot better now, but the surge is getting on my nerves after 1 day. The wife even looked at me and asked what I was doing to make it jerk like that. I told her I didn't feel anything... she says there it is... did you feel that... nope :jest: Almost seems like it stays in 4cyl mode longer and lugs the engine more before switching to 8cyl mode. I think I'll try the 91 nonDOD tomorrow and then run some logs. I was planning to just load the tune and forget it, but you guys are making me want to go deeper into this tuner and really try to dial it in.

Keep up the great work Lew!!

Mike

Keep up the great work Lew!!

Mike
Thanks Mike! :)


I was planning to just load the tune and forget it, but you guys are making me want to go deeper into this tuner and really try to dial it in.
Bring it on! ;)

.

Paul...i said the same thing to myself while the car was at the dealer and the diablo was burning a hole through the box...but with the CAI, i knew i'd need to fix the fuel trims and such. DO IT! Log it and report...just fine-tuning the couple of things we've done has made a marked improvement for me...and i'm not done, either.

Can't wait for tranny support!

Now, regarding the surge, i don't notice it as much b/c i do mostly city driving...so i don't see 4cyl mode all that often. I'm going to track my mileage during this fillup and see what happens, and then install the no-DoD tune and track that. We'll see what happens.

wait a minute here!! Chris, the logs and info you sent me - that was WITH DOD enabled?? I thought you had the No DOD tune installed, or did I miss it somewhere where you said it was still enabled???

If you still have the DOD enabled, drive in 3 to do your logs so that the DOD doesn't kick in... it will skew your numbers...

Let me know!

EDIT: yeah, just read through some back posts where you said you loaded the tune with DOD still enabled... just for sh!ts and giggles, drive around in 3 and do a log and let's see where those numbers are at.

Sorry...must have missed that little factoid :bang: ...was probably on page 2 or something, huh?

I just did yet another log with the 93 DoD tune after adjusting the PE tables as you suggested. At about 88% full, going WOT at about 110, my V1 goes off "LASER" :eek2: :eek2: :eek2: So i immediately bolt across 3 lanes and take that exit and snake my way through the City for a hiding place. I think i just now caught my breath...won't go logging for WOTs anytime soon.

At about 88% full, going WOT at about 110, my V1 goes off "LASER" :eek2: :eek2: :eek2: So i immediately bolt across 3 lanes and take that exit and snake my way through the City for a hiding place. I think i just now caught my breath...won't go logging for WOTs anytime soon.

That explains the deal with the Black SS on the News at noon Helicopter report!

I just did yet another log with the 93 DoD tune after adjusting the PE tables as you suggested. At about 88% full, going WOT at about 110, my V1 goes off "LASER" So i immediately bolt across 3 lanes and take that exit and snake my way through the City for a hiding place. I think i just now caught my breath...won't go logging for WOTs anytime soon.

Sounds like fun,Why 110, 109 would have been good enough :jest:

I do alot of highway driving and the surge is noticable. Especially if you have to slow down for traffic then speed up a little. You can feel it going from 4 to 8 or even 8 to 4 cylinders. That 91 octane no DoD is sweeeet though. I got her up to 114mph and have my log to prove it. haha

Chris, I have the same problem trying to get WOT logs. They just upgraded the interstate and the cops are out in force nailing people to help pay for it. I get the surging both in the city and highway and its actually worse in the city. I'm taking the Diablo to work with me tomorrow and try and get some logs on the way home. Maybe I can get WOT on the on ramp... maybe I'l try for 108 instead of 110 :)

if you guys are still running with DOD enabled, do your logs while driving in 3 - so the DOD doesn't kick in and skew the numbers... or, just install the No DOD tune and then you can log while driving in D.

Regarding the Laser alert, i just read at Valentine1.com that a few vehicles have a certain neon stoplight that causes laser alerts (Envoy & Trailblazer) and there are a couple vehicles with laser-guided cruise control could have caused this possible false alert. There is no way that i could have been gunned down where i was...no place for a Trooper to sit...unless they got me from behind, but i made sure i was "in the clear" when i attempted it. Funny thing is that i have been getting false alerts behind a certain Envoy for the past couple months...this explains it: http://www.valentine1.com/lab/Previously7.asp

if you guys are still running with DOD enabled, do your logs while driving in 3 - so the DOD doesn't kick in and skew the numbers... or, just install the No DOD tune and then you can log while driving in D.

I think i'm going to load the no-DoD tune today anyway and see what happens...and i'll try my WOT runs from onramps only this time...not from 60-70 :jest:

On a side note, my exhaust tips are freaking disgusting right now...completely BLACK...and i cleaned them out when i got home from the dealer on Friday. Something ain't right with this tune...

yeah, you're running way too rich... the -12 slope is overkill, that's why we want to see the numbers while NOT in DOD, cuz that throws off the trims.... I totally forgot/missed that you said you were using the tune with the DOD still enabled, otherwise we would have caught this from the start... sorry man...

if you want, modify the No DOD tune - make the slope -6% and the PE +4% in both ranges. That's where I have mine at, and it should get you pretty close to start with... I don't have any soot on my tips, and all my numbers are pretty much right on the mark. I'm running the Diablo Tune No DOD (93 octane)...

On a side note, my exhaust tips are freaking disgusting right now...completely BLACK...and i cleaned them out when i got home from the dealer on Friday. Something ain't right with this tune...

Hey Buff;
Don't feel bad about the soot, you're not the only one. I've been running the non DOD Diablo tune with -2 to -3 on the slope and +8 to +10 on the PE and my tips are as black as yours sound. I have never had my tips this dirty, EVER..., and I'm running way at the other end of the extreme from you on the tune. So beleive me, you're not the only one going thru "darky syndrome!!!

Monte, i ran another log this afternoon in 3rd but i forgot to send it home (or to you) before i left work...so i'll check it out tomorrow. My o2 levels were back down near .87v or so on my couple WOT runs...they had been up near .91. Still can't seem to get the LTFTs to zero out at WOT, though...dunno why. I'll make those adjustments and see what the deal is on my next log.

Gulf, glad i'm not the only one...it's pretty nasty.

Hey 06MonteSS… I guess it’s my turn now. I ran a log today with the 91 DOD tune, driving in 3rd and completely stock right down to the air filter. If I understand this, I’m running way lean on WOT. Had 3 WOT runs, O2 is around .84 to .87, A/F 12.39 to 13.6, LTFT around 6.25 to 8.59 (most around 8.59), STFT is 0. Where should I start changing the slope or PE?

Not sure what to look for during the steady driving... or even if I need to. The only thing steady about it is the A/F at 14.75 everything else is all over the board.

pgbSS - send me your log... webadmin at eprowebdesigns.com

Buff... I want to see that log...

Gulf... yes again - LOL - send me a log...

if you guys are that black with soot on your tips, then you're too rich - so the numbers I based my adjustment recommendations on must not have been good start with.

MAKE SURE YOU ARE NOT RUNNING WITH DOD STILL ENABLED. Either drive and log in 3, or just install the No DOD tune before you do any logs...

As I mentioned to BuffaloSS before, my settings are at -6% injector slope and +4% in both PE ranges, and I have no black soot whatsoever, and the car runs like a raped ape.

So, either you're still running with DOD enabled, or you didn't give your slope settings enough time to adjust the ltft's between logs.

Again, as I mentioned to Buffalo, whenever I make changes to the injector slope, I drive my normal commute for 2-3 days before I do another log, so things get settled into their groove.

you need to give your cars time to learn the new trim settings before doing more logs... making an injector slope change and then logging right away isn't going to give you correct/accurate info, since the trims now need to be relearned by the computer and settle in. You need to have driven the car for at least a couple hours (or about 100 miles) before doing another log after making adjustments...

YEah...that's likely my problem (amongst other things). Since friday, i've logged 5-6 times and made adjustments too soon. I'm going to install the non-DoD tune today, bump the Slope and PE to your settings, fill'er up and then drive it for a day or two. I'll log again after that and see what needs to happen from there.

With that 91 octane with DoD tune the engine was knocking like crazy on start up. I know with the factory tune would knock alot when it was really cold but this was when it was near 50 degrees. I don't know if anyone else has noticed that.

With that 91 octane with DoD tune the engine was knocking like crazy on start up. I know with the factory tune would knock alot when it was really cold but this was when it was near 50 degrees. I don't know if anyone else has noticed that.

I very much doubt you are hearing knock at start up. Piston slap or a couple of loose exhaust manifold bolts is much more likely. If you are getting knock at idle (audible at that!), you need to have the car flat-bedded into the dealer right away, that points to a severe problem that needs to be fixed right now!

Gulf... yes again - LOL - send me a log...


Hey 06 Monte;
I would, but one problem. Sort of need to have the car to be able to do that. She's in the shop right now with a major owee! Been there for 3 days now. But believe me, we'll get you a log as soon as possible.

aaaah, ok.... didn't know that Gulf.... I'll keep an eye out for it and get back to ya with the results...

I don't know for sure what it was but it was very noticable even over the exhaust. I flashed the stock tune back and it has been fine. I think I am just going to stay away from that DoD tune.

don't know what "what" was?? the surge??

I finally got it! 91 w/o DOD is so powerful! Love it!

With that 91 octane with DoD tune the engine was knocking like crazy on start up. I know with the factory tune would knock alot when it was really cold but this was when it was near 50 degrees. I don't know if anyone else has noticed that.

I also tried 91 w/ DOD. At start up, I felt rough idling. I think he meant "rough idle".

By the way, I felt a little surge, but it does not bug me at all.

Still running the 93 noDoD tune here. It's great and all...just haven't had the need for all the power yet. No one has challenged me from a stoplight...i feel sad. :cry: Going to do some logging this afternoon to see what's happening with the noDoD tune...

The wife did say she had to blast past someone at a red light that was going to slow for her. She gunned it from a dead stop and they tried to run her into a row of parked cars. She spun the tires quite a bit and still beat the piss out of them. Not much of a kill, but it showed the punk in the Integra to stay the **** back where he belonged. This was the first time she needed to use the power since we had the Uplander from the dealer...reminded her how much she likes the car.

nice!!

and yeah, let's see where your numbers are logging at now, since you've been driving with that No DOD tune for a while now...

After looking over the log and eliminating the non-cruising fueltrims, it appears that i'm somewhere between +2 and +3. My o2 readings at WOT are averaging about .87v or so.



Anyone know where i can buy another AD/DC adapter for this unit, without paying the $30 premium for the kit? I want one for work and home.

I've got another serial cable already, just need the transformer. I tried RadioShack, but for what we need (120vAC=>12vDC, 60Hz, 19W, 1000mA) it looks like my only option is the $35 multi-voltage adapter and i don't need all that.

Ideas where to look to find this thing on the cheap? Thx

EDIT: NVM about the above. Went straight to Jameco, the manufacturer, and found it for $8.25 plus S&H, so about $15. It's "Quick Catalog Order" #105478, for those interested. Not to hinder sales at the Diablo retailers, but it's probably cheaper to buy from Jameco and pick up a Serial cable from your local PC store for $3-$4.

are the ltft's locking at 0 when you go WOT? need to bring up those O2 voltages at WOT... I'd increase the PE ranges another +2 or +3% on top of what you currently have.

got the log you can send me?