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P1133 Diagnostic Trouble Code Discussion for March 2019

Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching

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Trouble Ticket Help Requests for DTC P1133
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