P0132Medium urgency

O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

Emission · Oxygen Sensors

⚠️ Safe to drive — fuel economy affected.

What this means

The upstream O2 sensor is reading consistently high voltage, indicating a rich mixture or a sensor stuck in rich reading. Can cause poor fuel economy and catalytic converter damage over time.

Likely causes

Failed upstream O2 sensorMost common
Rich fuel condition (check P0172)Common
Coolant or oil contaminating sensorLess common

Estimated repair cost

O2 sensor replacement$150 – $350

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Frequently asked questions

What does P0132 mean?

The upstream O2 sensor is reading consistently high voltage, indicating a rich mixture or a sensor stuck in rich reading. Can cause poor fuel economy and catalytic converter damage over time.

Is P0132 serious?

Safe to drive — fuel economy affected.

How much does it cost to fix P0132?

Repair costs for P0132 range from $150 – $350 depending on the root cause and your vehicle.

Can I drive with P0132?

You can drive short distances but should have it repaired within 1-2 weeks to prevent further damage.