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Found 1 result

  1. Hi guys! this is my first post! let's see if anyone can help me out with this problem. i have a 2004 porsche cayenne turbo with 120 000 miles. took it for a high speed run last night (130+ mph). when i got home i noticed a very rough idle and the car was shaking/vibrating. i can also hear a noise from the engine similar to an exhaust leak. the check engine light was already on prior to that ride (codes are : p2187, p2189, p0011, p0441) no new codes so i assume there is no missfires? feels like it runs on 7 cylinders.. coils and spark plugs have been replaced recently can a high speed run causes a blown spark plug/coil ? i still have boost so i assume it is not a boost/vaccum leak? can it be a stuck valve, bad spring valve all of a sudden? do i need a compression test or how can i check if one cylinder is missfiring? (i speak french sorry for grammar) thanks for your help! jp
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