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04-24-2009
i have a 2000 pontiac gtp and car runs great up until recently. when you accelerate slow car runs great but when you step on it and get it into the boost for the supercharger the car misses and backfires really bad. ive checked all coils, and maf sensor dont know anything about this car ive never had trouble with it till now can anyone give me some advice on this subject.........
04-25-2009
Have you done any changes/mods on the car lately that may have caused this problem? Did it just start to happen or did it slowly get worse over time?
Have you checked spark plugs also? Spark plugs make the world of a difference on a boosted car.
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