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P0154 Diagnostic Trouble Code Discussion for January 2016

Heated Oxygen Sensor (Bank 2 Sensor 1) Signal Remains At Center


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Trouble Ticket Help Requests for DTC P0154
Help Request Posted
2006 Hyundai Sonata GLS 3.3L Hesitation, MIL Lamp on VIN: 5NPEU46F56
P0154: Heated Oxygen Sensor (Bank 2 Sensor 1) No Activity Detected. We have a huge list of codes. See list. Mostly O2 heater and inactivity. We watch all the sensors working and then all of a sudden fuel trim goes to 0, all 4 O2's max to 1102mv and the heaters turn off. It also goes into open loop. We believe that it may have ...
January 07, 2016
2002 Hyundai XG350 3.5L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: KMHFU45E62
P0154: Heated Oxygen Sensor (Bank 2 Sensor 1) No Activity Detected. Car ran fine prior. Afterwards, car goes into limphome mode and will not idle. Both upstream o2's are holding steady at 20 mv, do not flucuate. Does not seem to accept any relearn. Have checked all connections, fuses. Car just keeps starting and stalling. Have...
January 13, 2016