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missfire problem 900 1996

posted by  960 man on  Fri Aug 28 13:50 CST 2009
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last visit: Sat Aug 29 11:21 CST 2009
[RELATED]

code P0301 (missfire cylinder one) replaced all 6 spark plugs and no help...help please








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    missfire problem 900 1996

    uid 11021's pic
    posted by  dewfpo on  Sat Aug 29 10:48 CST 2009
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    last visit: Thu Oct 23 18:34 CST 2014
    [RELATED]

    If, after inspecting/swapping the ignition coil the misfire remains in the same cylinder, then swap out the power stages (2), on the front and rear of the intake manifold (ball) and see if the misfire moves. If it does, you have a bad power stage.

    It could also be a bad injector as well. Try the above first, simplest, cheapest route to take.

    DEWFPO
    --
    1998 S90 083,228 and 1995 964 154,100








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      missfire problem 900 1996

      uid 15548's pic
      posted by  volvo245gti on  Sat Aug 29 11:23 CST 2009
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      last visit: Sat Sep 13 16:32 CST 2014
      [RELATED]

      I swapped the rear power stage on mine today. Hope you have "bendy" wrists. Might actually be easier to get at that one from underneath...

      --
      Dale








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    missfire problem 900 1996

    posted by  someone claiming to be D Hunter on  Fri Aug 28 16:31 CST 2009 [RELATED]

    The ignition coils often fail, swap number 1 with 2 and see if you then get a PO302.








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    missfire problem 900 1996

    posted by  bluedot on  Fri Aug 28 16:26 CST 2009
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    last visit: Mon Nov 15 07:05 CST 2010
    [RELATED]

    Remove that coil and inspect the vertical part of the insulator for long cracks.If one is cracked,inspect them all.The made-in-Spain Bosch coils are known to fail and are expensive to replace.Try to find a used set of the Japan coils from a '92-'95.Much less failure.

    Bill







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