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Misfire under acceleration

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Old 28 September 2003, 08:36 PM
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scoobynson
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my my98 uk turbo has just developed a bad misfire under med to heavy acceleration. It is smooth on idle and under steady to med boot its ok. anyone had this problem.
i have just been using it for heavy traffic use for last 2 weeks so i thought, plugs could be fouling.
had a blast to Blackpool and back and it hasnt cleared it, so maybe not! anyone had same problem.
Old 30 September 2003, 09:12 AM
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scoobyslut
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have you tried plug leads or coils? Could be a bit of tracking going on and loosing the spark.
Old 30 September 2003, 07:26 PM
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scoobynson
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checked connected ok, but seemed fine how do u check coil pack.
ps. top user name!
Old 01 October 2003, 10:42 AM
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DeanF
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How old are the plugs / & are you running higher than standard boost ?? If the plugs are worn or gapped incorrectly the spark can be weak & almost blow out under boost giving the misfire

Dean
Old 02 October 2003, 11:24 PM
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redwrx
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Check your plug gaps mate, i had nitemare with mine, missfiring underload ...........turns out plug gap set wrong ..

should be 0.7mm
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