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P0160 Diagnostic Trouble Code Discussion for June 2004

Heated Oxygen Sensor (Bank 2 Sensor 2) Signal Remains At Center

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Trouble Ticket Help Requests for DTC P0160
Help Request Posted
1997 Chevrolet K3500 7.4L Excessive Emissions, MIL Lamp on VIN: 1GBJK34J2V
P0160: Heated Oxygen Sensor (Bank 2 Sensor 2) Insufficient Activity. Post o2 sensors were replaced, 4 wire sensors and both are stuck at .438, heater circuits are o.k. tested all o2 sensor wires fron computer to o2 sensor connectors by transfercase, no shorts or opens. suspect an ecm problem. Any help from you GM Techs. Thanks.
June 29, 2004