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P0155 Diagnostic Trouble Code Discussion for January 2013

Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Performance

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Trouble Ticket Help Requests for DTC P0155
Help Request Posted
1997 Ford F-150 5.4L Surge VIN: 1FTEF18LXV
P0155: oxygen senser. owner just got pu truck so don't have any history, on start up it will rev up to 2000 or more then will idle down to 500 act like it will stop and rev up again,mil not on,stays in open loop,oxy sensors all at ooo changed h2o11 got some switching not like it sh...
January 15, 2013
2003 Chevrolet Express 3500 6.0L MIL Lamp on VIN: 1GBJG31U33
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater control circuit Malfunction. viehicle came in because could not smog and has o2 heater codes i have never seen 3 heater circuits non opperational all have 12 volt reff for heaters but computer does not pulse heaters when ennabled have done bentch test and the heater circuit opperates on t...
January 28, 2013