Q: Q: Getting error code P0304

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The Check Engine light is on. I am getting error code P0304.

P0304 means the engine computer has detected a severe misfire on cylinder 4. This could be due to a bad ignition coil, spark plug, fuel injector, or valve train issue. If the issue is not resolved, further damage to the engine or catalytic converter will soon follow. I suggest having a qualified technician diagnose your Check Engine Light to fix and avoid more damage to the engine.

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