P0137 Code – O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

Code P0137 Possible Causes
Low or high fuel system pressure
Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
Exhaust gas leaks
Faulty fuel injectors
Faulty Rear Heated Oxygen Sensor Bank 1
Inappropriate fuel pressure

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