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Need help!!!?!

sweetride

By sweetride,
in Engines & Forced Induction

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sweetride Apprentice

sweetride

Posted
Posted

Hi guys,

just wondering if anyone can help...

I have a R33, gts-t as you drive the car when under load the car has a miss (actually sounds like a poping noise out the back..........

I have replaced the plugs, fuel filter and gave it a full service, nothing seems to fix it, if the car is in neutral u can freely rev it to 7000rpm. Under load the car seems to miss at aroud 5 - 6000rpm, before i take it to get dynoed i was just wondering if anyone would have any sugestions or ideas to fix it....

thanks in advanced

sweetride

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BHDave Grand Master

BHDave

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Are you still running the factory 1.1 gap on the plugs? Try dropping it to .8 or .9mm for a start.

Also what mods do you have, as a stock car shouldn't have any issue with ignition with new plugs even with a stock plug gap.

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sweetride Apprentice

sweetride

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Posted
Are you still running the factory 1.1 gap on the plugs? Try dropping it to .8 or .9mm for a start.

Also what mods do you have, as a stock car shouldn't have any issue with ignition with new plugs even with a stock plug gap.

I just put in ngk iridium, it has exhaust, air filter, bov but the rest seems standard....

Some one has suggested to me it might be a coil?? The car only shows 67.000klms.??

Thanks

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