89GP_SE Posted May 26, 2009 Report Share Posted May 26, 2009 Ok so I have a missfire, and I smell a very very strong fuel odor. I get a nice puff of blueish smoke if I give it gas, along with the fumes smelling very strong of fuel odor. I have taken the plug wires off the front 3 plugs, they all gave spark, but only two changed idle speed when I pulled them off. One does not. The coil I suspect (the one that does not change idle speed when pulled) still give off a spark, not as strong as the others however, and kind of sparatically sparks. Would you say this is a coil problem as well. This is my 92 Lumina 3.1 Quote Link to comment Share on other sites More sharing options...
jeremy Posted May 26, 2009 Report Share Posted May 26, 2009 any codes? Quote Link to comment Share on other sites More sharing options...
89GP_SE Posted May 26, 2009 Author Report Share Posted May 26, 2009 No, OBD1 is pretty crappy that way. Quote Link to comment Share on other sites More sharing options...
Genopsyde Posted May 26, 2009 Report Share Posted May 26, 2009 should have consistent spark on all coils. change out the culprit and check all the plugs for fouling. Quote Link to comment Share on other sites More sharing options...
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