GrandPrix34 Posted April 4, 2004 Report Share 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 Link to comment Share on other sites More sharing options...
DaveFromColorado Posted April 4, 2004 Report Share 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 Link to comment Share on other sites More sharing options...
Heza Posted April 4, 2004 Report Share 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 Link to comment Share on other sites More sharing options...
Robby1870 Posted April 4, 2004 Report Share 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 Link to comment Share on other sites More sharing options...
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