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Thread: misfire problem HELP!!!!!!!!!!!

  
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    aldridge26's Avatar
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    misfire problem HELP!!!!!!!!!!!

    My astra sri 1.8 has got a misfire from 3000rpm up any one any idea ,Put new air flow metre on also new oxy senors on still no change ..... thanks

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    Daz coupe's Avatar
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    Plugs breaking down under load/ coil pack breaking down
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    do the checklist first, plugs, coilpack are the first things to check. i had a misfire at the very same revs as you, and again in 5th at around 70mph upwards.

    Change plugs, if problem persists then try a new coil pack

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    Ben_M's Avatar
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    first off welcome

    is the eml on? is so have you got a fault code? my guess is that it could be the coilpack

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    aldridge26's Avatar
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    thanks,the engin codes just say misfires on cylider 1.3.4

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    Error codes P0301, P0303 and P0304, did you have a P0300 code also?

    Sounds like plugs or coil pack failure. I had the P0300 and P0303 codes, changed plugs and pack and it sorted it out

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    Check the plugs ontop of the injectors aswell mate

    When I took my engine out for a gearbox change, I knocked the plug and it caused a missfire
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    misfire sorted

    after all the trouble with misfire problem with my astra sri it was the cat..

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