P1137 – O2 Sensor Circuit High (BMW)

Description

P1137 BMW indicates the O2 sensor signal is higher than expected.

Want to confirm the real cause of this fault code?

A high-quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze-frame information — exactly what you need to verify the root cause of this code with confidence.

View Recommended Scanners

Symptoms

  • Hesitation
  • Reduced power
  • Rough idle

Causes

  • Sensor failure
  • Fuel rich condition
  • Wiring fault

Diagnosis

  • Check O2 voltage
  • Inspect fuel trims
  • Check wiring

Repair

  • Replace sensor
  • Repair wiring
  • Fix rich mixture

Related Problems