Pontiac - OBD Code Lookup

P0138 Pontiac

HO2S Circuit High Voltage Bank 1 Sensor 2

HO2S Heater Performance Bank 1 Sensor 1

Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2

HO2S Circuit Insufficient Activity Bank 1 Sensor 1

HO2S Slow Response Bank 1 Sensor 1

HO2S Circuit High Voltage Bank 1 Sensor 1

HO2S Circuit Sensor 1

HO2S Circuit Low Voltage Bank 1 Sensor 1

Insufficient Coolant Temperature for Closed Loop Fuel Control

Engine Coolant Temperature Below Thermostat Regulating Temperature