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P0158 Diagnostic Trouble Code Discussion for May 2019

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

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Trouble Ticket Help Requests for DTC P0158
Help Request Posted
2011 Toyota Avalon Limited 3.5L MIL Lamp on VIN: 4T1BK3DB1B
P0158: O2 high voltage. ... engine light reoccurring. Sets both p0138 and p0158 but starts and runs good. Tested power/ground and resistance on all o2 and a/f sensors. Smoke tested for vacuum leaks and found none. The only thing I do see is the LT fuel trim says about 13% on bot...
May 16, 2019