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P0161 Diagnostic Trouble Code Discussion for September 2007

Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Performance

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Trouble Ticket Help Requests for DTC P0161
Help Request Posted
1998 Chevrolet C2500 Cheyenne 5.7L No Start VIN: 1GCGC29R7W
P0161: Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction. I recently had this truck come in with a cyl 5 misfire wich turned out to be a burnt wire. We changed plugs, wires, cap, rotor and did a fuel sysem clean. The vehicle ran fine. On the test drive it died. It has spark. fuel pressure is a low at 55psi and leaks ...
September 29, 2007