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BigBob, Shop manager/technician
Category: Buick
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Experience:  Shop Manager with 25 years experience
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I have OBD 11 code #p0102 Mass or volume circuit low input

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i have OBD 11 code #p0102 "Mass or volume circuit low input. What does this mean & how to I fix.

The Mass air flow sensor is an airflow meter that measures the amount of air entering the engine. The PCM uses the MAF signal to provide the correct fuel delivery for all engine speeds and loads. A small quantity of air entering the engine indicates a deceleration or idle condition. A large quantity of air entering the engine indicates an acceleration or high load condition. On you vehicle the most common problem is a bad mass air flow sensor, but also make sure the wiring looks ok.

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