Misfire on #2 at idle
12-12-2009, 10:12 PM
#1
Misfire on #2 at idle
I am getting a bunch of misfires on cylinder #2, but only when I am idling, and only on that cylinder. The misfire count is 800+ and trips the SES light every every few days. I dont get any misfires at cruise and WOT, just idle. Stock plugs and wires have about 50k on them. Should I switch the spark plug with another cylinder and see if it moves, and if it doesn't change, do the same with the wires and coil?
12-12-2009, 10:16 PM
#2
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I am getting a bunch of misfires on cylinder #2, but only when I am idling, and only on that cylinder. The misfire count is 800+ and trips the SES light every every few days. I dont get any misfires at cruise and WOT, just idle. Stock plugs and wires have about 50k on them. Should I switch the spark plug with another cylinder and see if it moves, and if it doesn't change, do the same with the wires and coil?
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12-17-2009, 05:35 PM
#10
I replace the plugs with TR55s, and stock wires with LS2 wires since I kind of broke one of the wires when I was removing it.... I went with the LS2 wires because they bend 90 degrees at the plug making it easier to keep them away from headers, especially pacesetters.
- Is there a trick to getting to cylinder number 6 plug, because damn that was a pain.
- The stock number 7 plug had a gap of less than 0.02, I say less because my measuring tool wouldnt even fit in there.
- All the stock plugs looked fine, albeit worn, but nothing abnormal.
After I finished I was still getting some idle misfires on #2 so I swapped the coil pack with the one from #6. Now those two works fine and #3 has a slight misfire at idle
Everything works fine at cruise and WOT, just idle is driving me nuts. I check my STIT and they are less than 2% off, so my idle tuning should be fine...
- Is there a trick to getting to cylinder number 6 plug, because damn that was a pain.
- The stock number 7 plug had a gap of less than 0.02, I say less because my measuring tool wouldnt even fit in there.
- All the stock plugs looked fine, albeit worn, but nothing abnormal.
After I finished I was still getting some idle misfires on #2 so I swapped the coil pack with the one from #6. Now those two works fine and #3 has a slight misfire at idle
Everything works fine at cruise and WOT, just idle is driving me nuts. I check my STIT and they are less than 2% off, so my idle tuning should be fine...
Last edited by Atomic; 01-06-2010 at 10:31 PM.