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A little background on the car, its 3500 swapped, 5spd. Has 3.4 dohc 24# injectors, walbro 255 fuel pump, ECU is tuned for injectors and for 3500 engine. ECU was tuned by Jon (3x00-modified).
Getting DTC P0171, I delete the code and comes back up even while idling. Engine cuts off under heavy load/high rpm scenarios. Cuts off like it reaches rev limiter, after that rpms continue to climb if i stay WOT.
Doesn't happen all the time ( I'm not going WOT all the time) Under normal driving light/medium load car runs perfect.
There is times that car acts perfectly normal even at WOT. I have checked for vacuum leaks with carb cleaner, all seemed ok. Nothing seems out of place.
On cold starts engine does surge, and sounds like if it's cammed. (it is not)
I was able to get a log through my phone from a short run, car did act up, twice to be exact. I'm not sure if this would help indicate any problem.
Thanks to everyone.
Getting DTC P0171, I delete the code and comes back up even while idling. Engine cuts off under heavy load/high rpm scenarios. Cuts off like it reaches rev limiter, after that rpms continue to climb if i stay WOT.
Doesn't happen all the time ( I'm not going WOT all the time) Under normal driving light/medium load car runs perfect.
There is times that car acts perfectly normal even at WOT. I have checked for vacuum leaks with carb cleaner, all seemed ok. Nothing seems out of place.
On cold starts engine does surge, and sounds like if it's cammed. (it is not)
I was able to get a log through my phone from a short run, car did act up, twice to be exact. I'm not sure if this would help indicate any problem.
Thanks to everyone.
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