testing the COP code 304
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Joined: Dec 2005
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testing the COP code 304
after an engine wash(2 days later) the engine is missing and i got a code of 304. pulled apart COP and blew out with air and still is missing, code 304. did not see moisture anywhere can i test it or is it shot?
Posting Guru
Joined: Apr 2005
Posts: 1,035
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From: duncan oklahoma
blow the plug bore out because there is probably still some water in there causing a short.pull the spark plug out and look at teh side of the plugs body .see if there is a sign of spark running down the side.usually a new plug and cop will fix the situation.just make sure there is no water in the bore
