Misfire at idle... (56K beware) [Archive] - GrandAmGT.com Forum


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07-23-2008, 12:43 PM
I have been getting a misfire in cyl #5, but only at idle. I have no idea why, so I thought if I posted a pic of the spark plug from #5 then someone could help narrow it down for me. Here are the best pics I could get with my phone. The plug on the right is from #5 and the one on the left is from #2. Is it a bad plug? or Injector? or what?

Sorry for the large pictures...



07-23-2008, 01:20 PM
looks like the electrode is gone... put another plug in and see what happens, or put that plug in another cyl and see what happens...if nothing happens switch the wire...if nothing still then switch the coil, dont use the 2-5 because it is the same coil...use the 1-4 or 3-6 and see if it changes spots

07-23-2008, 03:04 PM
Its a really bad pic. The plugs are very new. The elctrodes on both plugs are the same length and have the exact same gap.

07-23-2008, 03:06 PM
well the one on the right is really fouled...do the old switcheroo and go from there

07-23-2008, 07:05 PM
in the future, put the plugs over a white piece of paper to snap a pic