rm1985z28

i just reveiwed a scan and the afr errors were in the -40's

stangtrader

iTrader: (2)

Sorry,mis wrote that,i was asking if it was a ve or maf tune.either way if im not mistaken ve need to be tuned as well on a maf tune,but idk.I have only tuned a sd tune on my car and have no experiance tuning with a maf

rm1985z28

this is what i had earlier today

Wound-for-Sound

I really don't know where to start. Your running a SD tune so VE only. Start by resetting your stoich point to 14.68. and going back to PE and set it to where it cannot come in. Please put your stock timing table back in it, yours is rougher the the rocky mountains. Disable all burst knock. Now start scanning VE AFR error. copy, paste special, multiply by % until you get it close + or - 7ish then multiply by 1/2%. Once you get that, figure out what you want your PE AFR to be, say 12.5. Divide 14.68/12.5 that will be your PE ratio. After all that start messing with your timing.

Get on HPtuners forum and start reading your *** off. You have alot of learning to do. Don't get discouraged, you'll get it.

rm1985z28

how do u set the pe so it dont come in set the pe kpa to 0?and rpm to 0? ive done so much reading im starting to get confused......i changed the timing back to stock, afr to 14.68, put 0 in for burst knock, but i dont think it will even run at 14.68. the lowest i can get it is 17.

GA95DCMSS

iTrader: (13)

If you set stoich to 14.68, and the car runs at 17, you should probably tune your VE table, as everyone else has stated. When you measure this, is the car at operating temperature? Check this out, it may help you some. It'll at least give you a place to start. I don't have Cpig's tuning guide here, as this is a work comp, but I'm sure you could find it somewhere online.

*Disclaimer:* Some of the info in the Cpig guide isn't accurate, but most of it worked for me. It's at least a good starting point for beginning tuners.

http://ls1tuningguide.com/tuningmanu...ons%20rev3.pdf

Wound-for-Sound

If you set map and RPM to 0 you will almost always be in PE. Set RPM to 8000 or something ridiculous and watch your logs. If AFR CMD ever goes away from your 14.68 you are in PE or BE. You want to tune VE under 4K rpms at first to get going and work from there. You will be more knock prone with a stock table in the higher areas and under boost.

attached is what I have in a 6.0L with a small comp cam. The mohawk looks like **** but thats how it came out. Nice and smooth I'll post up that trucks stock tune also for comparison.

joecar

Why can't he leave PE enabled (to come on properly at significant load) since the PE AFR shows up in the commanded AFR pid...?

rm1985z28

ive got 80lbers on the way. ive read that u should tune on 92 get the ve table close then change to corn and change afr command to 9. something.is this correct?

BLK02WS6

iTrader: (2)

Wound-for-Sound

Yea thats my bad. I got use to tuning with STFT. And I haven't tuned in a while Make sure and change your PE though. It seemed way out of wack when I opened your file. That truck felt best around 12.5ish giving me a 1.17.

rm1985z28

new 80lb'ers and different ve table. afr is set to 14.68 now no more weird bog. the only thing i noticed was my wideband isnt the same as in the scanner.