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P0134 Diagnostic Trouble Code Discussion for January 2015

Heated Oxygen Sensor (Bank 1 Sensor 1) Signal Remains At Center

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Trouble Ticket Help Requests for DTC P0134
Help Request Posted
2007 Chevrolet Impala LS 3.5L Poor Idle Quality, Surge, Cuts out, MIL Lamp on VIN: 2G1WB58K27
P0134: Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Activity. Hi everybody. Have this Impala for another shop. The pre cat o2 switches between .410v and .490v at idle warm.Never going closed loop. Off idle 4000 rpm switches .390v to .525v. The heater works fine and when disconnected I can use a power probe to make the sc...
January 02, 2015