P0137 OBD Trouble Code

1 result found

P0137 - GM
Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description

HO2S Circuit Low Input Conditions
Location Bank 1 Sensor 2
Cause

No PCM codes set, engine running, throttle angle 2-40% for 4.5 minutes and PCM detected the HO2S signal was below 100 mv.

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