P0139 Diagnostic Trouble Code Discussion for March 2005
Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0139
| Help Request | Posted | |
| 1999 Mercury Villager 3.3L MIL Lamp on VIN: 4MZXV11T6X P0139: Heated Oxygen Sensor (Bank 1 Sensor 2) Slow Response. Tested the scan data on our scan tool and the voltage on the rear sensor stays at .29 volts. The front sensor has a good sweep and is very active. I tried to get a responce from the sensor under full throttle and deceleration, but it stays right at .29 volts. ... |
March 18, 2005 |
