13 button obc help

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  • Howmuchisthefish!!!
    Noobie
    • Feb 2009
    • 24

    #1

    13 button obc help

    Hey guys i got a question I hope you can help me with. I have an 88 325i with the original obc and the range and average mpg does not seem to work. Everything else like the code and temp works fine any ideas would be greatly appreciated. Thanks
  • Howmuchisthefish!!!
    Noobie
    • Feb 2009
    • 24

    #2
    Also there is one wire yellow plug that comes off the harnes for the obc does anyone know where that goes?

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