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P0161 Diagnostic Trouble Code Discussion for December 2011

Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Performance

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Trouble Ticket Help Requests for DTC P0161
Help Request Posted
2000 Chevrolet Silverado 1500 5.3L Hesitation, MIL Lamp on VIN: 2GCEK19T8Y
P0161: Heated Oxygen Sensor (Bank 2 Sensor 2) Heater control circuit Malfunction. Customer said runs rough cold and hesitates cold. Smoke tested intake and found leaking gaskets. repaired and cleared codes. Mass air flow did not come back but it still has high fuel trim and seems to idle a little funny. dont have time to wait for it to get ...
December 01, 2011
2006 Chevrolet Trailblazer LT 4.2L Hesitation, Stall, MIL Lamp on VIN: 1GNDT13S66
P0161: Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Performance. Thank you for taking the time with this one, This unit has been a problem for us for about 6 months - first time in this unit had a problem with stabilatrac - we had to repair some wiring under passanger seat for problem (new connector)this unit was fine up un...
December 23, 2011