Microsquirt/Megasquirt people please help
10-23-2016, 07:40 PM
#21
Yenkomike- i know your buddy's camaro has a different cam than me, but do you think you could send me the tune from that and i could at least see if it cures my hiccup problem? If so, let me know the firmware on it as well, and ill back mine up to match.
10-23-2016, 07:46 PM
#22
I just looked at your tune as well. Along with the changes mentioned, under general settings click the incorporate afr to be on, it will use the afr table for fueling calcs. Your fuel table is lean in the idle area.
Correct the reqfuel, add some fuel in the idle region, stop enrichment at or below 160*, also try less than 4 squirts, if dead time is wrong, fueling will be way off. Double check dead time and lean it out some on idle as well. The afr table has you idling around 12.5, you should be able to idle just right in the 13.8 to 14.2 range
How much boost you running? 16* of timing at 14psi is a bit much on pump gas, unless your running e85?
Raise the cranking rpm a bit under the start tab, 200 is borderline. 300 would be a better value
I see the coolant timing correction now too, holy cow. That makes boosted timing even worse, lower that You really don't need timing out that far, much less past about 130*
Are you not running idle control?
You can raise cranking dwell, even out to 5ms and you can raise nominal dwell too, if theses are LS coilpacks, I've ran good power at 3.2, and run 3.8 on my setup, but I'm on Ms3 and we have an option to run it on a table
Have you verified timing? I've seen stock setups be 6* advance and my ls3 was 4* retarded
You essentially have ego control turned off with it active above 7500rpm. Change the step size to 1%. And for initial tuning, make the tps below like 105% and below map value above your boost level. Let auto tune do some work for you
Correct the reqfuel, add some fuel in the idle region, stop enrichment at or below 160*, also try less than 4 squirts, if dead time is wrong, fueling will be way off. Double check dead time and lean it out some on idle as well. The afr table has you idling around 12.5, you should be able to idle just right in the 13.8 to 14.2 range
How much boost you running? 16* of timing at 14psi is a bit much on pump gas, unless your running e85?
Raise the cranking rpm a bit under the start tab, 200 is borderline. 300 would be a better value
I see the coolant timing correction now too, holy cow. That makes boosted timing even worse, lower that You really don't need timing out that far, much less past about 130*
Are you not running idle control?
You can raise cranking dwell, even out to 5ms and you can raise nominal dwell too, if theses are LS coilpacks, I've ran good power at 3.2, and run 3.8 on my setup, but I'm on Ms3 and we have an option to run it on a table
Have you verified timing? I've seen stock setups be 6* advance and my ls3 was 4* retarded
You essentially have ego control turned off with it active above 7500rpm. Change the step size to 1%. And for initial tuning, make the tps below like 105% and below map value above your boost level. Let auto tune do some work for you
Last edited by Nathaninwa; 10-23-2016 at 07:59 PM.
10-23-2016, 07:53 PM
#23
I just looked at your tune as well. Along with the changes mentioned, under general settings click the incorporate afr to be on, it will use the afr table for fueling calcs. Your fuel table is lean in the idle area.
Correct the reqfuel, add some fuel in the idle region, stop enrichment at or below 160*, also try less than 4 squirts, if dead time is wrong, fueling will be way off. Double check dead time and lean it out some on idle as well. The afr table has you idling around 12.5, you should be able to idle just right in the 13.8 to 14.2 range
How much boost you running? 16* of timing at 14psi is a bit much on pump gas, unless your running e85?
Correct the reqfuel, add some fuel in the idle region, stop enrichment at or below 160*, also try less than 4 squirts, if dead time is wrong, fueling will be way off. Double check dead time and lean it out some on idle as well. The afr table has you idling around 12.5, you should be able to idle just right in the 13.8 to 14.2 range
How much boost you running? 16* of timing at 14psi is a bit much on pump gas, unless your running e85?
For injector dead time, ive played around with it a bunch. It runs the smoothest between 1.3 and 1.4. No idea if this is right or wrong, its just the only place the engine will run.
I literally havent touched the upper part of the ve or timing table. Ive never had it above 120kpa or so. All that ive done has all been in my shop. Idling, free revs, and a little brake torquing. Its never ran well enough for me to feel comfortable enough to take it out and start tuning the upper half.
10-23-2016, 08:04 PM
#25
I kept editing my post
170 is close to 200. If it happens to crank faster it gos into run mode. Car won't run less than about 500 with maybe some dips into 400 rpm when it stumbles, so maybe 250 cranking rpm
You can't really guess at deadtime, do you have the data on the injector? If your off a little, it's exploited by the 4 sauirts
170 is close to 200. If it happens to crank faster it gos into run mode. Car won't run less than about 500 with maybe some dips into 400 rpm when it stumbles, so maybe 250 cranking rpm
You can't really guess at deadtime, do you have the data on the injector? If your off a little, it's exploited by the 4 sauirts
10-23-2016, 08:09 PM
#27
Do some testing, make sure the coils are firing and all the injectors are working. You might have an injector spraying more than the others causing a rich condition. I've had this happen to me before
After about 160* you don't need anymore enrichment, or timing. The key to a good tune, is getting a hot idle working, then you add in wue and timing as needed
After about 160* you don't need anymore enrichment, or timing. The key to a good tune, is getting a hot idle working, then you add in wue and timing as needed
10-23-2016, 08:29 PM
#28
Ive checked the coils and they are all sparking. Dont know how to test much past that.
Injectora are new siemens deka 80. From what ive read, they are rather inconsistent. I didnt receive any data with them, and ive seen people running anywhere from .88 to 1.7 dead time. So i honestly dont know where to go on that.
I'd love your e85 tune. Thats what im wanting to run, but ive been screwing with it for so long that i quit trying e85 because i didnt want it sitting in my tank or injectors. Once i figure it all out, its going right back to e85.
I'll change my cranking to 250. I was unaware thats what the setting was for.
I have not verified timing. That was one of the things i was going to check this week if i couldnt figure this all out. I know these LS motors have a tendency to be off even when all still factory sealed like mine.
I did not know i could change cranking dwell. All settings like those are all unchanged from denmah's base tune. I'll do some research and see where my coils are most happy. I have the round truck coils.
Yenkomike, ill pm you my email.
Injectora are new siemens deka 80. From what ive read, they are rather inconsistent. I didnt receive any data with them, and ive seen people running anywhere from .88 to 1.7 dead time. So i honestly dont know where to go on that.
I'd love your e85 tune. Thats what im wanting to run, but ive been screwing with it for so long that i quit trying e85 because i didnt want it sitting in my tank or injectors. Once i figure it all out, its going right back to e85.
I'll change my cranking to 250. I was unaware thats what the setting was for.
I have not verified timing. That was one of the things i was going to check this week if i couldnt figure this all out. I know these LS motors have a tendency to be off even when all still factory sealed like mine.
I did not know i could change cranking dwell. All settings like those are all unchanged from denmah's base tune. I'll do some research and see where my coils are most happy. I have the round truck coils.
Yenkomike, ill pm you my email.
10-23-2016, 08:38 PM
#29
You can run as much as 6ms on cranking, the DC is so low the coils won't light off advanced. Don't run nominal dwell anything over 4.0 with the coils. They can trigger advanced and hurt your motor
I have a 2jz with the truck coils running 3.7ms under power and it makes 815whp at 27psi and I've since turned it up to 33psi on a .031 gap. My LS is running a .26 gap with a 7 plug running 3.5ms and my trap vs weight says it's almost making 1100whp
I'd bump it to just over 3.0 till you start tuning
I have a 2jz with the truck coils running 3.7ms under power and it makes 815whp at 27psi and I've since turned it up to 33psi on a .031 gap. My LS is running a .26 gap with a 7 plug running 3.5ms and my trap vs weight says it's almost making 1100whp
I'd bump it to just over 3.0 till you start tuning
10-24-2016, 04:30 AM
#34
Staging Lane
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i do not know the amount of acceptable variance in some of these settings in EGO but my settings are different by a fair amount.
16
.1
15
150
7800
70
90
20
this car is a stock L33 with 80 lbhr deka injectors on e-85.
i have some cold start issues to work thru still ( starts easily but needs a little warm up time before driving) but other than that the car drives really nice and make great power in 8-12 psi ranges.
16
.1
15
150
7800
70
90
20
this car is a stock L33 with 80 lbhr deka injectors on e-85.
i have some cold start issues to work thru still ( starts easily but needs a little warm up time before driving) but other than that the car drives really nice and make great power in 8-12 psi ranges.
10-24-2016, 07:31 AM
#36
Do you happen to have a set of smaller fuel injectors available?
What fuel pressure?
I found it much easier to get a set of stock LS6 injector to idle compared to the deka 80 injectors, even at 43.5 psi.
Edit: I assume this is a 24 tooth crank sensor? I had sync issues until I did the update that was released about 2 years ago.
What fuel pressure?
I found it much easier to get a set of stock LS6 injector to idle compared to the deka 80 injectors, even at 43.5 psi.
Edit: I assume this is a 24 tooth crank sensor? I had sync issues until I did the update that was released about 2 years ago.
10-24-2016, 09:31 AM
#37
Getting a lot of differing ideas here...lol
I do not have a spare set of injectors. Just the 80's. And to be honest, the car will sit and idle fine. Especially when cold. It doesnt really act up until its been running for 15+ minutes. I'm going to change the tune around today to fix all the issues that have already been discovered, then go from there.
I'll report back in a few hours when I get that all done.
I do not have a spare set of injectors. Just the 80's. And to be honest, the car will sit and idle fine. Especially when cold. It doesnt really act up until its been running for 15+ minutes. I'm going to change the tune around today to fix all the issues that have already been discovered, then go from there.
I'll report back in a few hours when I get that all done.
10-24-2016, 10:55 AM
#38
There will always be difference in opinions when it comes to tuning. After timing has been checked and it's verified that what the wideband reads is reported in tuner studio, using the include afr target in the tune and driving like normal, you can see auto tune go to work. If you bring up the egocor1 gauge, you can see what microsquirt is doing to try and reach your afr target. You can be lean 30%, let ego correction get you safe and auto tune will adjust the ve table
This takes into account that your mat correction chart is spot on and I have found that the ideal gas law equation doesn't work in practical in the engine So once you have tuned on a day and a month later when it colder out you see the afr,s or correction is off, it's most likely not the fuel table, but mat correction. It took me a years worth of time to get my tune with in +/- 3% year round
This takes into account that your mat correction chart is spot on and I have found that the ideal gas law equation doesn't work in practical in the engine So once you have tuned on a day and a month later when it colder out you see the afr,s or correction is off, it's most likely not the fuel table, but mat correction. It took me a years worth of time to get my tune with in +/- 3% year round
10-24-2016, 05:10 PM
#39
Yenkomike, you are a damn life saver. I owe you big time. Got your e85 tune loaded up, changed the afr from 10.0 to 14.7, and the damn thing runs better than it ever has. I still have a slight popping out of the exhaust at idle, so im going to mess with injector dead time and see if i can help it any, but other than that, its literally a night and day difference. No more cutting out at all.
So after going over your tune, it turns out the warmup enrichment should be 100% when up to temperature, and above 100% when in WUE mode. I was tuning it down to 0% when it was up to temp, which apparently causes it to pull away all the fuel? I dont know, but whats important is that it is fixed.
Thank you so much. If there's anything i can ever do for you, you just let me know. You helped fix a year long problem for me.
So after going over your tune, it turns out the warmup enrichment should be 100% when up to temperature, and above 100% when in WUE mode. I was tuning it down to 0% when it was up to temp, which apparently causes it to pull away all the fuel? I dont know, but whats important is that it is fixed.
Thank you so much. If there's anything i can ever do for you, you just let me know. You helped fix a year long problem for me.