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2007 Galant 2.4
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Hi everyone! New to the forum and I haven't found an answer in the forum yet, hoping the experts can help.

I have a 2007 2.4 that recently needed a new fuel pump. I put in a Delphi and the problem was fixed....for a few weeks. Now it starts misfiring during acceleration and throwing P301. It has new, but cheap plugs which I regapped after my kid installed them without checking (teaching moment), so I went to the coils. Here's the thing: I get a P301 with the coils in original position. I swapped the #1 into 2, 3, and 4 and each time I get a P304. Put it back to #1 and it throws P301 again. Is this enough to determine the problem is bad coils? They are stock with 156K miles on them.

I don't want to spend $300 on coils just to have the problem be something else, even though I should replace them anyway. Thanks in advance!
 
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