2001 GTP with acceleration problem
i have a 2001 GTP with a cai 3.4 pulley zzp down pipe and zzp front powerlog... im having an issue where when i accelerate moderately to heavily.. the car hesitates and seems to cut the power to the engine. some times it accelerates fine. i was thinking an ignition problem.....any ideas?
are you seeing any KR? if so that could be your problem, because with headers intake 3.4 and no tune i was seeing 4-5* of kr until i tuned it.
I have the same problem on a 2000 gt with a 3.8. No idea what a kr is... Not much of a mechanic myself, but i hate bringing it in blind. any ideas?
KR, Knock Retard is the engine pulling timing due to it sensing pre-detonation in your cylinders. for the OP it's more likely since he has a modded engine, but for you if you NA and stock it most likely just needs a tune-up.
Looking for a Used Grand Prix in your area?
CarGurus has 2,762 nationwide Grand Prix listings starting at $1,200.
Search Pontiac Grand Prix Questions
Pontiac Grand Prix Experts