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Misfire after High Rpm Shift .. Help!

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When i do a 3rd gear pull up to 7k then shift into 4th fairly quickly my car wil hesitate then throw a SES and sound like a Subaru The SES goes away after awhile but i am getting a code for Cyl 6 misfire. Could this be a bad Coil pack/ spark plug? It's weird that it only happens after a hard shift. Sometimes i feel hesitation down low around 2k rpms in 2nd gear also around town and every once and awhile a random hesitation.

Car is FBO with Jb4 .


Thank you !

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