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Thread: P0171 and P0174 lean codes

  1. 12-31-2015, 11:33 AM #46
    califabricator
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    yes , what did you use to clean it ..?
    anyways was thinking to pull the valve cover but not too soon, don't want to bite off more than is needed..
    has anyone used the ford powertrain and emission manual.. ? got one coming.
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  3. 12-31-2015, 02:17 PM #47
    GRANTBP
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    Quote Originally Posted by califabricator View Post
    yes , what did you use to clean it ..?
    anyways was thinking to pull the valve cover but not too soon, don't want to bite off more than is needed..
    has anyone used the ford powertrain and emission manual.. ? got one coming.
    Carb cleaner
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