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OBD ll Problem please help!!

This is a discussion on OBD ll Problem please help!! within the Computer & Tuning forums, part of the LSx Technical Help Section category; I have these OBD ll codes and i dont no what they are and how to fix them. these three ...

  1. #1
    Junior Member
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    Fort Myers, FL.
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    1999 Trans am

    OBD ll Problem please help!!

    I have these OBD ll codes and i dont no what they are and how to fix them. these three codes I cant figure out.

    P1133
    P1637
    P1860

    These codes will come and go and I cant figure out why.
    P0102
    Which is my Mass air flow sensor circuit, low input
    P0103
    Which is my Mass air flow sensor circuit, high input
    P0138
    Which is my Oxygen sensor circuit, high voltage (post-converter sensor, left bank)

    How can i get these to stop coming on Please help!!!!!!!

  2. #2
    Senior Member
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    Jul 2005
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    Jacksonville, FL
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    2,725
    You can look up the code descriptions/diagnostics at gearchatter.com 1133 is your front drivers side 02, 1637 is an alternator issue, and 1860 is a TCC PWM solenoid electrical malfunction in the trans. 1860 isn't on gearchatter so I'll post a link for it.

    Is the car stock? If you have any mods make a signature and list them, it'll help people answer.

  3. #3
    Senior Member
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    Here's the link, sounds too complicated to me and best left to a professional, but at least you know what it is and what heppens when it sets: www.ls2.com/boggs/a4/DTC%20P1860%205.7.htm

  4. #4
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    1999 Trans am

    Thanks you

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