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Error code P0301 cylinder 1 misfire

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  • [Corsa D 2006-2014] Error code P0301 cylinder 1 misfire

    My 2010 plate corsa sxi 1.4 has this error message, how do I resolve this??

    Cheers

  • #2
    As said in your other thread:

    First - check the spark plug on that cylinder. They can fail without it being apparent so I'd replace it. If you want to save pennies swap the plug with another cylinder and see if the misfire follows it.

    Whilst you've got the coilpack off check the connections on no.1 cylinder. Look for any signs of discolouration or cracking. Give it a good spray with WD40. If you have access to a spare coilpack try fitting that. There's not a lot you can do to check a coilpack other than replacing it - especially when it's an intermittent misfire.

    If the misfire continues try swapping the fuel injector with another cylinder - see if the misfire follows the injector.

    If all else fails get a compression test done, make sure the cylinder is mechanically sound.

    (Occasionally they used to throw random misfire codes when the EGR got sticky - but they've stopped fitting EGRs to later engines.)
    1972 Viva restoration thread - http://www.thecorsa.co.uk/projects-b....html#post1534

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