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It means you have low voltage to the sensor. Before you replace it, get a simple multimeter, check the voltage on the clip for wire, you can Google which wires to test and how, then upstream on the same wire, i had the same issue. It turns out the maf was fine, the wire clip that attaches to the sensor was bad. It caused the car to rev in idle and the transmission would hit hard when going from park to drive. All this was cured with a $ 40 replacement wiring clip.

Check wiring first, i had all kinds of advice from low cost such as throttle position sensor, IAC valve and MAF replacement.

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11y ago
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Q: What does code p10102 maf or vaf a low input mean?
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