GrandPrix34 Posted April 4, 2004 Report Posted April 4, 2004 When i hold the acceleration to 3k in idle (ffp chip/removed limiter) i start hearing and feeling backfiring through the exhaust...then when i let the gas pedal go, I'll here backfiring (or knocking) in the engine compartment... -spark plugs are new -wires are new -ICM was replaced awhile back -ECM was also replaced wit a 94 Lummy one Is this a case of a coil or crank sensor going bad or is it a serious "need to rebuild" engine case? Ill take vid/sound if anyone will host it... by the way, i just ordered an ALDL cable and downloaded the Freescan software to use with my notebook computer.....what parameters should i look for that are out of wack? Quote
DaveFromColorado Posted April 4, 2004 Report Posted April 4, 2004 .. I was getting the same thing, then I realized I was a moron and ended up puttin' two plug wires in the wrong places, I checked it a few times before I figured out I was a moron. --Dave. Quote
Heza Posted April 4, 2004 Report Posted April 4, 2004 .. I was getting the same thing, then I realized I was a moron and ended up puttin' two plug wires in the wrong places, I checked it a few times before I figured out I was a moron. --Dave. i love doing stupid shit like that at times too! Quote
Robby1870 Posted April 4, 2004 Report Posted April 4, 2004 When i hold the acceleration to 3k in idle (ffp chip/removed limiter) i start hearing and feeling backfiring through the exhaust...then when i let the gas pedal go, I'll here backfiring (or knocking) in the engine compartment... -spark plugs are new -wires are new -ICM was replaced awhile back -ECM was also replaced wit a 94 Lummy one Is this a case of a coil or crank sensor going bad or is it a serious "need to rebuild" engine case? Ill take vid/sound if anyone will host it... by the way, i just ordered an ALDL cable and downloaded the Freescan software to use with my notebook computer.....what parameters should i look for that are out of wack? Does it back fire when you get on it in gear? Quote
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