[Dmacc]

I'm trying to read this correctly but I'm having a hard time making sense of it. I'm getting sort of a stutter in my third gear when I'm trying to maintain full boost. I believe it has something to do with my OL fueling, I just need some help to make sure it is in fact the culprit.

These are the aggressive stage 1 maps with boost turned down from 18 to 16psi, OL set to 80% and wg comp set to 30% on a Rev 2.5

Here is a log of a 2-3pull


and here's one of just a third gear pull, where the marker is is where the stutter occurs


thoughts?

[Dmacc]

Looks like everyone is as stumped as I am haha

[E3r2E9r]

Not stumped here. If your fuel trims exceed or come close to 32 then you would want to adjust your OL + 5 and re log.

[Dmacc]

Originally Posted by E3r2E9r

Not stumped here. If your fuel trims exceed or come close to 32 then you would want to adjust your OL + 5 and re log.

I was thinking that was the case, so what I went ahead and did was set it to 100% just to see if there was any difference. Same issue occurs, I hit the ceiling. So tomorrow morning I'm going into FFTEC and having my car flashed with the Procede flash, I'll update this thread tomorrow with news of what is happening.

[3-Serious]

Your timing looks horrible its flat all over the place, it looks to be droping once you reach above 30% on the fuel trims, hopefully the flash helps keep us posted

[dirtmaster666]

Originally Posted by nickkg37s

Your timing looks horrible its flat all over the place, it looks to be droping once you reach above 30% on the fuel trims, hopefully the flash helps keep us posted

Doesn't stage 1 boost at 14??

[3-Serious]

Originally Posted by dirtmaster666

Doesn't stage 1 boost at 14??

30% on your fuel trims the max is 34 when you run to much fuel it drops the timing. Use to happen all the time in my car when I had the procede. Mine would max out the trims the whole time though.

[sickem]

forgive me if this is a dumb question but are you running 91 octane? If so, then I think you're supposed to run stage 0, no? Not sure if this might affect your fueling. If you're on 93, then never mind!

edit: I also found this post by shiv in a thread where a guy was maxing out his fuel trims for an extended period of time (although it was an E85 mix...). Again, I am not expert here. Just trying to help and learn at the same time. Thread can be found here: http://www.e90post.com/forums/showthread.php?t=736335

"OP- Just drop your boost setting by 10-15%. ~18psi at 4000-4500rpm is too much boost with a 50/50 mix without methanol and/or a ProcedeFlash. If you limit boost a bit, your AFR will fall in line nicely and your trims wont max out."
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[Dmacc]

Originally Posted by sickem

forgive me if this is a dumb question but are you running 91 octane? If so, then I think you're supposed to run stage 0, no? Not sure if this might affect your fueling. If you're on 93, then never mind!

edit: I also found this post by shiv in a thread where a guy was maxing out his fuel trims for an extended period of time (although it was an E85 mix...). Again, I am not expert here. Just trying to help and learn at the same time. Thread can be found here: http://www.e90post.com/forums/showthread.php?t=736335

"OP- Just drop your boost setting by 10-15%. ~18psi at 4000-4500rpm is too much boost with a 50/50 mix without methanol and/or a ProcedeFlash. If you limit boost a bit, your AFR will fall in line nicely and your trims wont max out."
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Thank you for the input! Good news is I just got the Procede Flash today

[M3_Dylan]

Originally Posted by Dmacc

Thank you for the input! Good news is I just got the Procede Flash today

Did you re-log yet?

[boosted5]

I think I am having the same issue let me know what you find please..

[Dmacc]

Haven't relogged yet, I'll go out tonight and do a few runs, I just adjusted a few settings and from what I feel it's running smooth as butter.

I have shell 91 in the tank, boost set to 17psi, and OL set to 70% right now.

I'll report back once I put a log together, but as a preliminary impression, the procede flash has fixed my issue!!

[3-Serious]

Curious as well? Post up a log asap.