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2002 Pontiac Grand Prix GTP Question: what is the po300 code mean



youngs, Coffey, MO, February 26, 2012, 12:39

What is said on the machine was it was a random misfire

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  • Answer #1

    February 26, 2012, 16:00

    Random misfire is when different cylinders misfire at different times.
    Some times you can feel it misfire and sometimes you can't.

    Most of the times a tune up will solve the problem.

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