1994 Oldsmobile Silhouette Q&A

1994 Oldsmobile Silhouette Question: Check engine light

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. -
Answer 1
Sounds like a failing oxygen sensor, sometimes weak oxygen sensors will make the check engine light go on and off. -
Comment 1
Also might try cleaning or replacing the Mass Air Flow Sensor -
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