blk00ss

iTrader: (66)

First off, I have a 403 with a FASTintake and Fast throttle body, Patriot stage III heads, 248/252 .615/.612 cam. ever since I have had the car back together with the new set-up it has had a low RPM "stumble". Say if I'm leaving from a stop sign slowly, and the rpm's are anywhere from 1000-2000 rpm's sometimes it wont act right...kind of hard to explain but it is like a stumble. It throws a check engine light every once in a while. And its always a Throttle position code. But I have swapped out sensors and it still does it. Was just wanting to get a few ideas as what else might be causing it?

SSNISTR

iTrader: (10)

Dirty MAF?

blk00ss

iTrader: (66)

Havent tried that yet....

thebart455

sounds like u need to get it tuned. its more than likely in the tune of the car

transam1998

iTrader: (5)

Did you get it tuned? if not, do so right away.

blk00ss

iTrader: (66)

Yes. It has been tuned. On the street,and dyno'd. Maybe I can try the TPS relearn...?