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throttle position sensor 96 960 900 1996

posted by  jimo on  Sun Sep 1 19:12 CST 2019
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last visit: Thu May 8 10:43 CST 2014
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My 1996 960 sets a trouble code for throttle position sensor. I replaced the throttle position sensor with a new Bosch unit and it still sets a code, but it is odd the way it sets it. If I clear the code it will reset after I start the car, but it takes about 10 seconds for the light to come on. If I don't clear the code and start the car, it still waits about 10 seconds for the light to come on. Any suggestions will be appreciated as the way it is currently it will not pass inspection.

Thanks,
Jimo








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    throttle position sensor 96 960 900 1996

    posted by  spook on  Sun Sep 1 19:27 CST 2019
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    last visit: Fri Oct 24 08:06 CST 2014
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    Dear jimo,

    Hope you're well. What codes are set? Have you cleaned the throttle position sensor's wiring harness connector with Deoxit or a similar corrosion-remover?

    The time-delay before the problem recurs suggests that corrosion could cause higher-than-normal resistance in the wires that connect the sensor to the Engine Control Module (ECM). Resistance generates heat, which eventually breaks the circuit.

    The problem could also be where the wiring harness connecte to the ECM.

    Cleaning these contacts is a low-cost trouble-shooting step.

    Hope this helps.

    Yours faithfully,

    Spook








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      throttle position sensor 96 960 900 1996

      posted by  jimo on  Sun Sep 1 19:42 CST 2019
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      last visit: Thu May 8 10:43 CST 2014
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      Spook,

      Thanks for the suggestion. I will try cleaning the connector. I'm not sure what the code is but I will clean the connector tomorrow and check the code and give an update.

      Jimo








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        throttle position sensor 96 960 900 1996

        posted by  jimo on  Mon Sep 2 14:27 CST 2019
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        last visit: Thu May 8 10:43 CST 2014
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        Spook,

        Well I went out to clean the contacts and to check the code and the check engine light is off and when I check for codes there are none.

        To elaborate on when the code was set, I had disconnected the plug and sprayed it with electrical cleaner. I cleaned it just as maintenance as it was not showing a code until I cleaned it. So evidently I did not have the connections dry enough
        so maybe that is why it set a code.

        So now that it does not show a code-great I can get it inspected. But my final question is I have always thought that if it was started a few times and did not detect a problem that it would turn off the light but would it also clear the code? I hope that is the case, but for certain I will get it inspected soon.

        Thanks,

        Jimo







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          throttle position sensor 96 960 900 1996

          posted by  spook on  Mon Sep 2 15:53 CST 2019
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          last visit: Fri Oct 24 08:06 CST 2014
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          Dear jimo,

          Hope you're well. On a 940, to clear a code, it sometimes is needful to disconnect the negative battery cable clamp from the negative battery terminal, and then wait, say, 20 minutes before reconnecting. One should ascertain and/or write-down the radio's security code, before doing this.

          I do not know if this procedure can/should be used on a 960. As to that, I'll defer to the Brickboard's 960 specialists.

          Hope this helps.

          Yours faithfully,

          Spook







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