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Thread: ls1 misfire problem

  1. #11
    Joe (Moderator) joecar's Avatar
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    Log these pids: GM.MFCYL#C where # = 1 to 8

    ( I don't remember if the cyl #'s correlate to actual cylinder numbers or to firing order )

  2. #12
    Joe (Moderator) joecar's Avatar
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    Check:
    - wiring connectors at each coil pack assembly;
    - wiring connectors for injectors;
    - wiring for CMP sensor.

  3. #13
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    Found the problem turned out to be coils but shortly after fitting them I did a big end as the engine was low on oil

  4. #14
    Joe (Moderator) joecar's Avatar
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    ok, thanks for posting back.

  5. #15
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    Sorry guys I have had a busy week and some family issues. I found the problem and it was the coils it was running on all 8 but must have been a bad spark from multiple coils.

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