What can cause a P0304 "Cyl.4 Misfire Detected" ?

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07-24-2007, 03:52 AM

steve77

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What can cause a P0304 "Cyl.4 Misfire Detected" ?

Wondering what can cause that problem. It's the first time I see it when I diagnostic the ECU.

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07-24-2007, 05:04 AM

Neo1130

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Plugs, coilpacks, lean condition... Swap #4 coil with #1 and see if it follows. Change plugs too..

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