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O2 sensor going south?

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  • O2 sensor going south?

    When it's hot out (>20C) and the engine is up to temperature (>90C) it will not hold a steady idle. It bounces around and even stalls unless I keep my foot on the gas. Rather annoying problem. Also seems to be running rich as well as I get quite the fuel/exhaust smell in the cabin when coming to a stop. Could this all be attributed to a faulty Lambda/O2 sensor? Is the rich condition a symptom or a cause?

    Ben
    Ben
    Calgary, Alberta
    Canada
    1991 CQ e//S2 w/ RS2 spec 3B 20vt
    Panther Black Metallic
    www.moda-architecture.ca

  • #2
    It certainly could be, i had similar issues and replaced lamda and its now gone
    Greg

    S2Forum.com Administrator & Webmaster

    '93 Coupe with a few tweeks

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