lt1 problems continue.. multiple misfires
10-12-2012, 04:36 PM
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lt1 problems continue.. multiple misfires Hey everyone, i had a thread up about low fuel pressure about 15-20psi when on the gas 36-38 idle, anyways i replaced my pump for the check valve was bad in it anyways with a new racetronix unit. Car cranks right up now went for initial test drive and im still getting multiple misfires and a flashing CEL. No codes, o2 sensors seem to be working from my little live scanner. enging idles fine, high but fine and its been like that since the head cam install... need ideas spark plugs? FPR? not sure where to go with this..
10-13-2012, 12:01 PM
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it has a tune from madtuner and was running relativley good until the other day, i mean it had a couple hiccups check valve in pump was bad and it has a hanging rpm issue when coming to a stop, but just the other day it started misfiring while driving onlye, any amount of throttle and any amount of speed/gear. I wass thinking maybe fuel because its fine at idle and revving... but im not a mechanic per say but i do all my work myself, checked for arcing last night didn't see anything either... need to get another fuel pressure gauge to check..
