Code p 304, I have done spark plugs,wires,ignition coil, top motor mount. Car has been fine for a week then the engine light came on again with same code. Car runs fine, rpm are good.

20

Asked by Gene Oct 29, 2015 at 08:20 PM

Question type: Maintenance & Repair

Car does shake when at a stop. Not
as bad before I fixed the motor
mount.

221,005

Rowefast answered 8 years ago

Cylinder # 4 is misfiring...

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20

Gene answered 8 years ago

I know that I can't figure out what else to do. Replaced all the usual stuff. Car seems to run fine Could be a false light

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221,005

Rowefast answered 8 years ago

The causes are: Bad spark plug, bad wire, bad ignition coil for that cylinder, dirty or bad injector, or bad compression.

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Gene answered 8 years ago

Plug was dry, not wet or black and oily. Car seems to run fine. Has a little knock when cold and shakes a little when at a stop

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221,005

Rowefast answered 8 years ago

Compression or anything to do with the spark is all I can come up with.

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Your Answer:

Code p 304, I have done spark plugs,wires,ignition coil, top motor mount. Car has been fine for a week then the engine light came on again with same code. Car runs fine, rpm are good. 5 Answers

Car does shake when at a stop. Not as bad before I fixed the motor mount.

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Code p 304, I have done spark plugs,wires,ignition cool, top motor mount. Car has been fine for a week then the engine light came on again with same code. Car runs fine, rpm are good. 1 Answer

Car does shake when at a stop. Not as bad before I fixed the motor mount.

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