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2003 GMC Safari Question: Engine started jerking intermittently and Check Engine Light went on.



, Tampa, FL, April 20, 2011, 22:40

Error Code P0102
Problem occurs only at highway speeds.
Previously got Check Engine Light on with code P0101 that was resolved last month by replacing MAF Sensor.
What more should I have done to avoid issue returning?

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  • Answer #1

    April 20, 2011, 23:57

    P0102 also relates to the MAF sensor - frequency less than 1200 Hz.

    I'm wondering - when you replaced the MAF sensor, did you replace the MAF wiring connector? Sometimes the connector can have an open circuit.

    And - the processor's memory should be cleared after replacing this sensor.

    Last - check for any air leaks from the air box or air tube.

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