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Thread: Code P1171

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  1. #1
    Member Since
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    Got it!
    You replaced the MAF after cleaning did not clear the codes.
    That throws a curve in my plans. 150 for a MAF (if cleaning does not do it) or 50 to 100 for 2 oxygen sensors....
    What milage where you at when this happened?
    [SIGPIC][/SIGPIC]

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  2. #2
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    Wink

    Quote Originally Posted by snowtrooper1966 View Post
    Got it!
    You replaced the MAF after cleaning did not clear the codes.
    That throws a curve in my plans. 150 for a MAF (if cleaning does not do it) or 50 to 100 for 2 oxygen sensors....
    What milage where you at when this happened?
    I'd say to the best of my memory it was around 40,000 miles. I remember getting my Supercharger on at 36,000 miles and it was about a few months later that I started having this problem.
    [SIGPIC][/SIGPIC]"If its fast and reliable, its not cheap;
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  3. #3
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    Nice!
    I Will clean the MAF tomorrow and see what happens...

  4. #4
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    Exclamation

    Uh, if you are getting O2 codes as well then it is probably those and not the MAF. Any OTHER info? The whole story really helps give you a complete diagnosis instead of a bunch of WAGs thrown in by those who have had some of the problems you mention....

  5. #5
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    As far as I can tell, there are no performance issues. Nothing to indicate trouble besides the codes.
    IIRC, these codes appeared after I had been driving around with way too much oil in my Dragon, a result of not getting good readings off my dipstick and fear of excessive oil burn.
    The thought was I may have fouled the sensors, but it has been some time, and I am still getting the codes....
    Best,

  6. #6
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    Wink

    I'd still clean the MAF first & see if that cures your problem. Easy, cheap & quick to try. If that fails...let us know what you end up doing and how it all turns out!

  7. #7
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    Find what's causing the lean condition and fix it. The sensor voltage will then increase and the codes will go away.



    Based on the experience of others here, it's very likely you have a dirty MAF sensor. Get some electrical parts cleaner or MAF sensor cleaner at Wal-Mart for a few bucks. I clean mine once a year. If that doesn't work, try something else on the list of fixes.

    Mark Griffin
    Last edited by deermagnet : 12/31/2008 at 05:58 AM

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