Cylinder 4 miss fire code p034

Asked by Oct 22, 2015 at 03:15 PM about the 2007 Subaru Impreza

Question type: Maintenance & Repair

2 Answers

1,665

change the spark plug, if it still has a miss, change the sparkpug wire if it has one, or the COP if its that style

6,540

You mean 304. See my response to other poster. Before changing the wire just twist the coil end #4 wire so it doesn't touch metal, and make sure the plug end boot is PUSHE ON securely. Clear CEL. It it recurs check plug. If wet or bad replace; if wet use stop-leak in oil to close up oil leak. Very rarely will a coil pack be bad.

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    TheSubaruGuruBoston
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