Q: Misfire code 302 cylinder 2

asked by on October 07, 2016

Already replaced spark plugs with no resolution. Moved coil/boot from cylinder 2 to cylinder 1. If I recheck the codes and I get a cylinder 1 misfire code, I assume it is a bad coil, other wise the problem still resides in cylinder 2. Is my logic correct?

My car has 186000 miles.
My car has an automatic transmission.

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Hey there. Your logic is absolutely correct. This is in fact one of the most commonly used ways to diagnose a bad ignition coil. If the trouble code turns to a P0301, the ignition coil is faulty. If the trouble code remains a P0302, the problem could be the cylinder two fuel injector causing this issue. If this is the case, I would recommend enlisting the assistance of a qualified professional to replace your fuel injector on the number two cylinder.

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