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1995 Chevrolet Lumina Question: 3x CRANKSHAFT POSITION SENSOR's check engine light?

 

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carzen, 3.1L V6, Moorpark, CA, October 07, 2013, 13:33
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My Chevy lumina-sedan 3.1L V6, 1995's ECU module shows the 3X Crankshaft position sensor's signal error. The sensor was removed and has been reinstalled. Does it require retraining the ECU? what is the right sensor voltage from cranking the engine in order to diagnose this sensor?

If need to replace, what is the best way to reach it? it locates on the back side of the engine block near firewall!

Thanks in advance.

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  • Answer #1

    pushrod October 07, 2013, 14:51
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    Will it start up and run?

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    carzen, October 07, 2013, 15:40
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    Yes, it starts up and runs fine, in my opinion. But the code scanner indicates "3x crankshaft position signal error". Does it require training? or just a intermitten bad sensor&connection? thanks

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    pushrod, October 07, 2013, 15:44
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    Can have a crankshaft position relearn procedure performed with a professional scanner, that may help.

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    carzen, October 09, 2013, 10:33
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    Thank you for your help. My scanner can not train this crankshaft position sensor;
    if I leave it as such, will it cause any problems or damages?

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    pushrod, October 09, 2013, 14:34
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    No, i dont think so!

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