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Expert
47 Answers
- Posted on Sep 12, 2010
Re: 2003 Mitsubishi Lancer ES
Engine code P0301 -...
Two things to check: Had the same type of issue on my Mustang.
1. The coil might be bad.
2. Is the plug getting wet? If it is you need to track down the source and repare that.
My bet is on #1 though.
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