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Misfire

This is a discussion on Misfire within the General Help forums, part of the LSx Technical Help Section category; My 02 B4C was running a little rough and coding a cylinder 7 misfire. I replaced the spark plug, plug ...

  1. #1
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    2002 Camaro B4C SS

    Misfire

    My 02 B4C was running a little rough and coding a cylinder 7 misfire. I replaced the spark plug, plug wire, coil, and injector. After all this, the problem was not fixed. Anyone have any ideas? I pulled the head and that cylinder looked "wet" compared to the others.

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    What about the voltage wire that runs to the coil? Check it to see if its got voltage.
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    Quote Originally Posted by vetteemt View Post
    What about the voltage wire that runs to the coil? Check it to see if its got voltage.
    x2 ..beat me too it

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    What is the best way to check the voltage? What about the harness to the injector?

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    Take the connector off and measure the voltage on the pins inside the connector. You well need a multimeter for this. This failure could also be on the injector harness as well. Tho I think the coil plug is easier to get to.

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    The engine will have to be running or just power on?

  7. #7
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    I think the egine needs to be running, but try it first with it not. If you get nothing then start it up.

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