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  1. Getting horrible gas mileage 11 mpg....po420 code

    Started by chevy350, 02-05-2013 11:28 AM
    code, gas, horrible, mileage, mpgpo420
    • Replies: 19
    • Views: 1,382
    Last Post: 02-15-2013 02:49 PM
    by Frosty  Go to last post

    Forum:
    General Grand Prix Discussion

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