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P0161 Diagnostic Trouble Code Discussion for September 2004

Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Performance

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Trouble Ticket Help Requests for DTC P0161
Help Request Posted
1999 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP53S5X
P0161: bank 2sensor2 02 sensor circut problem. this car is driving us nuts.performed all the pin-point tests and replaced 02 sensor.ses light came on after 2 trips.we then warrantied the 02 sensor,cleared codes,light came back on after 2 trips.we then again ran the pin-point tests,cked for opens and shorts...
September 15, 2004
1999 GMC K3500 Sierra SLT 7.4L Excessive Emissions, No Start, Poor Idle Quality, MIL Lamp on VIN: 1GTHK34J7X
P0161: Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction. Replaced coolant temp sensor and thermastat- tested all O2 sensors - replaced bank 2 sensor 2- run injector flow test with tech 2 - found no. 6 bad- cleaned than replaced all injectors and had fuel rail cleaned by Linder- checked removed tank cleaned- replace ...
September 27, 2004