2bar 08 vette and reduced enguine power

[Tunning @ LMR]

I have done all the patches and it stil wants to go in reduced engine power sometimes, any ideas

[Bill@HPTuners]

Any codes?

[Tunning @ LMR]

No, but I have the p0101,106,and 121 min set to 492, and max set to 493, p0068, set to enable at 8192, and I have raised the max air flow v s rpm some as well. I have also halfed the ifr table, maf tables, and displacement because this is a turbo car, and has 96lb injectors

[INTMD8]

Do you still have the maf enabled or are you running SD?

With the SD C6Z's I've tuned I maxed the IFR and left all other tables stock then tuned with the VE table. (my car uses bosch high imp injectors that flow about 100lbs/hr at 58psi).

Not sure if that would matter or not but I have not run into any reduced power modes.

[Tunning @ LMR]

SD, thanks i will try that

[Tunning @ LMR]

It has a stock unported 90mm tb, it seems to do it mostly before start up.

[Street Legal]

It has a stock unported 90mm tb, it seems to do it mostly before start up.

with the key on engine off try to hit WOT does it do it ? if it does you could have something wrong with the tps or the throttle plate touches something

i had a car with the same problem throttle plate was hitting the MAF on a procharged C6.

[adambrandt]

i had this similar problem when I tuned my hummer for SD two years ago. Here was the origional thread. It turned out to be a vac leak that was causing the issue.

http://www.hptuners.com/forum/showthread.php?t=7222

[Frost]

Do you still have the maf enabled or are you running SD?

With the SD C6Z's I've tuned I maxed the IFR and left all other tables stock then tuned with the VE table. (my car uses bosch high imp injectors that flow about 100lbs/hr at 58psi).

Not sure if that would matter or not but I have not run into any reduced power modes.

I have done this with Hi-Z 83s (same injector you are speaking of?) and had good results myself.

[Tunning @ LMR]

I will also mention this car is a conversion from 6l80 to 4l80, and has stand alone for the transmission. I started with a 08 z06 file when i first started tuning it.

[Tunning @ LMR]

It only seems to happen when you first start the car. I have checked and there is nothing touching the blade, maybe some can bus stuff I guess.