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Misfiring / stumbling at higher RPMs (video link)

J

jmackisback

New member
I have had my 97 GTP for 7 years with no problems. Only routine stuff such as oil and brakes. In the past couple of weeks I have developed a significant misfire at 3.5k rpm - to redline. No check engine light. Replaced plugs, coil packs, fuel filter....no improvement. Anyone have any guesses or possible solutions? Keep in mind the video below actually shows less of a misfire than usual. It can be quite a bit worse.

https://www.youtube.com/watch?v=i0rEoN3aMXM
 


What kind of plugs did you put in it? Also, why not replace the wires? Could have damaged one (or more) when pulling them off the old plugs. Do you get a flashing CEL when it happens?
 
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