What P0102 means
Mass or Volume Air Flow Sensor A Circuit Low
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P0102:
| AUDI | The Mass Airflow Sensor (MAF) Sensor is unplugged or the wiring is damaged, Loose or corroded electrical terminals in the MAF Sensor circuit, Faulty MAF Sensor |
| BMW | Mass or Volume Air Flow Circuit Low Input |
| FORD | MAF Circuit Low Input |
| GM | Mass Air Flow (MAF) Sensor Circuit Low Frequency |
| HONDA | Mass Airflow (MAF) Sensor Circuit Low Voltage |
| MITSUBISHI | Mass or Volume Air Flow Circuit low Input; AFS low input |
| NISSAN | Mass or Volume Air Flow Circuit low Input |
| VOLKSWAGEN | Mass Air Flow (MAF) Sensor Circuit Low Frequency |
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