cylinder 3

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    P0303 and failed compression test

    Hi there! P0303 (misfire cylinder 3) just popped up after 121,000 miles on my 2007 CX-7 (i.e. turbo). Very unfortunate since it was running so nice lately. Anything different lately? Well, new gas tank 30 miles prior (doubt that is the problem), and 2 tanks ago I put a can of gumout in the gas...
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    Need help

    I HAVE A CYLINDER 3 THAT ON A COMPRESSION TEST ONLY READ 95 PSI WHILE THE OTHERS READ 155 PSI... WHAT SHOULD I DO?... other than not right in all caps anymore.
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