Question about 1999 Pontiac Grand Prix
I have had similar problems with other model cars in the past. One time it was a knock sensor needing replacing. The other time was O2 sensor. Both gave similar symptoms as you stated, especially when it was the O2 sensor.
Posted on May 23, 2009
Clean the MAF w/ carburetor cleaner, then let it dry.
Posted on May 15, 2009
I had the same problem on the same car. It was the crankshaft position sensor and the spark plugs and wires and that fixed my problem.
Posted on Nov 20, 2009
I replaced the MAF and fixed it
Posted on May 30, 2009
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Posted on Jan 02, 2017
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