What P0103 means
Mass or Volume Air Flow Sensor A Circuit High
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 P0103:
| BMW | Mass or Volume Air Flow Circuit High Input |
| FORD | MAF Circuit High Input |
| GM | Mass Air Flow (MAF) Sensor Circuit High Frequency |
| HONDA | Mass Airflow (MAF) Sensor Circuit High Voltage |
| MITSUBISHI | Mass or Volume Air flow Circuit High Input; AFS high input |
| NISSAN | Mass or Volume Air flow Circuit High Input |
| VOLKSWAGEN | Mass Air Flow (MAF) Sensor Circuit High Frequency |
Read this code on your own car
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