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P0138 Diagnostic Trouble Code Discussion for December 2011

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage

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Trouble Ticket Help Requests for DTC P0138
Help Request Posted
2006 Toyota Tundra Limited 4.7L MIL Lamp on VIN: 5TBDT48176
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage. Truck came in with ses light on with code 138 and 156 stored. Checked heater circut for power and shorts, on road test the down stream sensors read .01 at start up then go to .80 after a couple of blocks and stay there until deacclerating when they go to .25 v...
December 10, 2011
2001 Volvo S80 T6 2.8L Poor Idle Quality VIN: YV1T890D61
P0138: o2 High Voltage B1S2. When you start this car cold most of the time it will misfire (not like a specfic cylinder more like it had bad gas) and idle terrible then within a few minutes will run fine until the next morning.I do not have a scan tool that will access OEM data. I have tr...
December 28, 2011