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VZ misfire need help

Discussion in 'Mace Engineering' started by blackvz, Dec 11, 2015.

  1. blackvz

    blackvz New Member

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    In short, #2 misfire
    Replaced
    Coil and test
    Plug
    Cleaned fuel system from filter to injectors
    Checked all connections and hoses
    No change
    Pulling hair out
     
  2. MACE

    MACE Well-Known Member

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    Hi blackvz

    In addition to what you've already done, I would probably do a fuel pressure test to make sure each cylinder is receiving adequate fueling at the right time and if that's all good, I would do a compression check as one of the valves or head gasket may be worn. You may even have a vac leak around the manifold and predominantly that cylinder. Alternatively, I'd hit up the guys on the VZ forum:

    VZ Holden Commodore (2004 - 2006)

    Kind regards
    Damian
     

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