P0132: Oxygen sensor (bank 1, sensor 1): voltage too high
The bank 1 oxygen sensor before the catalytic converter reads a voltage that is too high. Often a short circuit, the connector or a fouled sensor.
| Code | P0132 |
|---|---|
| System | Engine and transmission |
| Group | P01xx, Air and fuel metering |
| Type | Generic: it means the same on every make |
| Can you keep driving? | With care |
What P0132 means
The oxygen sensor before the catalytic converter measures how much oxygen is left in the exhaust, and the ECU uses that to fine-tune the air and fuel mixture. This code means the ECU sees a voltage higher than is possible, usually from a short circuit or a contaminated sensor.
Most common causes
- Damp or corroded sensor connector
- Signal wire shorted to the heater supply wire
- Sensor contaminated by oil, coolant or silicone
- Mixture too rich from a leaking injector or excessive fuel pressure
- Faulty oxygen sensor
Symptoms
- Engine warning light on
- Higher fuel consumption than usual
- Slightly rough idle or small hesitations
- High emissions that can fail the inspection
Can you drive with P0132?
With care You can drive, but the mixture may not be controlled properly: fuel use goes up and, left too long, it can end up damaging the catalytic converter. Get it looked at soon.
Open the bonnetthe in-depth explanation
How to check it
With the engine warm and idling, watch this sensor’s voltage in live data: a conventional sensor swings quickly between roughly 0.1 and 0.9 V. If it stays fixed, the problem is the sensor or its wiring (some cars use a wideband sensor, which shows different values).
How to read and clear P0132 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P0132 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P012E The turbocharger intake pressure sensor fails now and then
- P012F Engine coolant temperature and engine oil temperature do not match each other
- P0130 Oxygen sensor (bank 1, sensor 1): circuit fault
- P0131 Oxygen sensor (bank 1, sensor 1): voltage too low
- P0133 Oxygen sensor (bank 1, sensor 1): slow response
- P0134 Oxygen sensor (bank 1, sensor 1): no activity
- P0135 Oxygen sensor heater (bank 1, sensor 1): circuit fault
- P0136 Oxygen sensor (bank 1, sensor 2): circuit fault
- P0100 Mass or volume air flow sensor circuit fault
- P0101 Air flow sensor range or performance problem
- P0102 Air flow sensor circuit low input
- P0103 Air flow sensor circuit high input
What does code P0132 mean?
The oxygen sensor before the catalytic converter measures how much oxygen is left in the exhaust, and the ECU uses that to fine-tune the air and fuel mixture. This code means the ECU sees a voltage higher than is possible, usually from a short circuit or a contaminated sensor.
Can you drive with P0132?
You can drive, but the mixture may not be controlled properly: fuel use goes up and, left too long, it can end up damaging the catalytic converter. Get it looked at soon.
How do you clear P0132?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P0132 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
