What is your question?
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What is your question?
Looked at coil packs spark plugs.
1 Reply
304 and 306 are both ignition miss codes (cylinder 4 and cylinder 6). Typically this is a secondary ignition problem. If I were an experienced technician, I would swap the coils and the spark plugs to different cylinders and see if the miss followed. If the miss follows to the new cylinder, then you have found the problem. If the miss did not follow then you could be talking internal engine failures, perform a compression test and/or a leak down test.
Thanks for the advice,