Check Engine Code
P0132
O2 Sensor Circuit High Voltage (Bank 1, Sensor 1)
What P0132 means
Counterpart to P0131. The upstream O2 sensor is reporting voltage above the expected range — either an actual rich condition or a failed sensor stuck high.
Symptoms
- CEL
- Rich running
- Black smoke
- Bad economy
Likely causes (most common first)
- Leaking fuel injector
- High fuel pressure
- Failed O2 sensor
- Coolant intrusion (head gasket)
- Short to power on signal wire
Can I keep driving?
Medium — drivable but fix soon
Typical repair cost
DIY fixes can start near $40 (parts only). Shop repairs for P0132 typically run up to $500 depending on the underlying cause and vehicle. Start with the most common cause — Leaking fuel injector — before throwing parts at it.
Symptoms that match P0132
If you got here from a search query, one of these might describe what your car is actually doing:
Recommended parts & tools for P0132
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