2005 Chevy Malibu P0138 O2 Sensor Bank 1 Sensor 2 Fault Diagnosis
The check engine light is on and diagnostic code P0138 has appeared. This code indicates a high voltage circuit issue with the oxygen sensor in Bank 1, Sensor 2. What could be causing this fault in a 2005 Chevrolet Malibu?
DTC P0138 - HO2S Circuit High Voltage Bank 1 Sensor 2. For detailed information, refer to: http://www.obd-codes.com/p0138