P0132 O2 Sensor Circuit High Voltage (Bank 1, Sensor 1)
What does P0132 mean?
P0132 — O2 Sensor Circuit High Voltage (Bank 1, Sensor 1) (bank 1). This is an OBD-II diagnostic trouble code a scanner retrieves when your vehicle's computer detects o2 sensor circuit high voltage (bank 1, sensor 1) on bank 1. The level of risk depends on how the vehicle is currently running and how long you've been driving with the light on.
Common causes of P0132
- Faulty oxygen sensor stuck at a rich voltage
- Shorted signal wire to voltage
- Rich fuel mixture from fuel pressure or injector faults
- Sensor contaminated or damaged
How to fix P0132
- Watch sensor voltage while commanding fuel changes
- Check fuel pressure and trim for a real rich condition
- Test the signal circuit for short-to-voltage
- Replace the sensor if stuck regardless of fuel changes
- Re-check trims after replacing the sensor