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Rodney98 11-11-2012 08:29 PM

CEL code P0300
this code will be on for awhile then go out, then come back on. Randon misfires but it seems to be running fine 2001 TJ

XKMAN 11-11-2012 08:37 PM

Posted at Sun Sep 28, 2008 11:53 am
By rasmataz, Certified 2CarPros Master Technician

A code P0300 may mean that one or more of the following has happened:

Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer
Possible SolutionsIf there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

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