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ECT Sensor 900 1995

965, 173K, bought new. Vehicle hard to start, or not at all, when warm or hot, let cool, no problem. Electric fan runs regardless of engine temperature indication. When cool, vehicle starts rough, smoky, idle a little high, but quickly smoothes out, runs fine. Smells like too much fuel or choked. OBD gives me an ECT code, 1-2-3. I need to check ECT connection and resistance, but can't find the thing! Help!








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    ECT Sensor 900 1995

    Sure sounds like you are on the right track. The coolant sensor is located at the rear of the head, tight fit between that and the firewall. You may need a mirror to see it. Check the connection first though.

    DanR '94 964 340,000 miles (106,000 on the new engine)
    --
    DanR







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