P1133 Diagnostic Trouble Code Discussion for March 2019
Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
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| Help Request | Posted | |
| 2007 Buick Lucerne CX 3.8L MIL Lamp on VIN: 2G4WJ58257 P1133: Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching. I have made several attempts but the code did not reset and the obd2 monitors have not completed. Originally there was a hesitation from dirty maf and catalyst efficiency issues. Is there anything that can prevent the monitors from completing ? Fuel trim... |
March 15, 2019 |
