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On way home check engine light came on. Got home and hooked up code reader and got the P0302. Just replaced spark plugs a couple weeks ago. Also a new AEM air filter installed also.When giving it gas it was sluggish at times. But when I took foot off gas pedal check engine light went off. Foot back on and check engine light back on. Car has 104,777 miles on it. Would replacing just coil pack fix issue.
 

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Are they the original coil packs?
The standard suggestion for them is to replace them with oem parts after 60k miles. Often they last longer. To troubleshoot you can clear the code, pull the coil pack from cylinder 2, and swap it with another cylinder. If the misfires follow the coil back then thats likely your issue.
If it were me I would just throw a whole new set in there.
Some have reported that the new(er) msd coil packs work but I have never used them so I cant say for sure.
 
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