P0102
Mass or Volume Air Flow Circuit Low Input
Generic code
Fuel and Air Metering
High severity
Hard repair
Free on OBD DashX
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What P0102 means
- The fault code P0102 implies that the Mass or Volume Air Flow (MAF/VAF) sensor circuit has a low input signal. This may cause engine performance problems, and the engine may not start or idle correctly.
Possible symptoms
- Reduced engine power or acceleration
- Engine stalls or idles roughly
- Illuminated check engine light
- Engine may not start or may start but not run smoothly.
Possible causes
- Dirty or damaged MAF/VAF sensor
- Loose or corroded electrical connections
- Failed MAF/VAF sensor
- Faulty wiring or connections in the circuit
- Failed engine control module (ECM)
Related parts
- Mass Air Flow Sensor: A mass (air) flow sensor (MAF) measures the amount of air entering the engine to ensure proper combustion. This car's malfunctioning MAF sensor will lead to poor fuel economy and performance
Possible solutions
- Clean or replace the MAF/VAF sensor as necessary
- Check and repair any damaged wiring or connections
- Tighten or clean any loose or corroded electrical connections
- Replace the engine control module (ECM) if necessary
Free on OBD DashX
P0102 on OBD DashX
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