What does code P1146 mean on Volkswagen vehicles?
The ECU detects incorrect supply voltage to the mass air flow (MAF) sensor.
OBD-II Code Volkswagen
P1146 — Volkswagen — Mass Air Flow Sensor Supply Voltage Malfunction
The ECU detects incorrect supply voltage to the mass air flow (MAF) sensor.
Common symptoms
- Check engine light
Possible causes
- Electrical power supply fault
- wiring issues
- ECU output problem
Initial recommendation
Measure MAF supply voltage and inspect power and ground circuits.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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