Thumpn

what would cause injectors to go wide open at any throttle position while on the throttle ? Idle is normal. tps voltage changes from .55v at 0% and voltage rises with % of throttle. with Hp's VCM scanner logging i only see the LTFT and STFT not right compaired to previous logs and they peg out at 20.6 when on the throttle. all other readings look normal. any help would be great!

JoeNova

Are you logging duty cycle or pulse width?

What has been done to the engine?

Thumpn

logging duty cycle, engine is stock 02 LQ4 with headers and intake filter . I have done many tests on tps, maf and O2's, i have even swapped ecm

Old Geezer

iTrader: (3)

Why no mention of fuel pressure testing?