WHAT IS THE MOST COMMON CAUSE FOR REDUCED ENGINE POWER? CODE P0304

Question

REPLACED PLUGS ALREADY. WHAT IS THE MOST COMMON CAUSE FOR THIS CODE?

Answer 1

P0304 Misfire number 4 cylinder, the common cause for this is the ignition coil , If you want to prove it is the coil exchange with another cylinder, if the misfire migrate to that particular cylinder replace the ignition coil.

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