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P0136 Diagnostic Trouble Code Discussion for August 2009

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0136
Help Request Posted
2007 Buick Rainier CXL 4.2L MIL Lamp on VIN: 5GADS13S24
P0136: 02 sensor fault b1 s2. ... and p1133. replaced front 02 for not switching fast enough. test drove both codes came back within 2 miles of driving. front 02 goes below 100mv and above 900mv sometimes hangs around 800mv for a second then goes down below 100 and above 900. thought maybe...
August 24, 2009