99 passport check engine light

11-23-2010, 01:41 PM
I'm working on a 99 passport I have replaced the o2 sensors on bank 2 and still getting a check engine light after clearing all the codes. It is for the o2 sensor bank2 sensor1 no activity. Have checked the plug several times and nothing I do seems to help. Any advice would be greatly appreciated.

Cat Fuzz
11-24-2010, 12:23 PM
Are you sure you're replacing the correct sensor? Bank 2 sensor one would be on the drivers side in front of the cat. Other than that, you must have a wiring problem. Somewhere between the sensor and the PCM is a broken lead or the connection at the PCM is bad. Could also be disconnected inside the plug.

11-26-2010, 01:04 PM
Got the problem fixed it was faulty wiring going up over the transmission.

95.5 Rodeo
11-26-2010, 03:09 PM
It is always good to hear the solution to a problem when it is found.
Thanks for posting.

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