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1994 Oldsmobile Silhouette Question: Check engine light

 

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JenB, 3.8L V6, Fenton, MO, January 03, 2009, 12:25
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My check engine light comes on/off. The vehicle is at 150XXX miles but the engine is not (new engine). Vehicle is slugish at times and needs a tune up but this would not call for the engine light coming on. Is this a preset command in the computer? How is this reset.

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  • Answer #1

    January 05, 2009, 09:46
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     Master

    Sounds like a failing oxygen sensor, sometimes weak oxygen sensors will make the check engine light go on and off.

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    Visitor, September 08, 2010, 20:03

    Also might try cleaning or replacing the Mass Air Flow Sensor

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