Error code O2 sensor bank 1 sensor 2

[case2001]

Hi, just pulled this code. Wondering where I would find this sensor on a 99 expedition xlt 4x4.



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[Bedrck47]

which code did you pull

bank 1 is passenger side
sensor 2 is the sensor after the cat

 

[Goats]

I want to say it's the 02 sensor on the drivers side the 2ed one down

 

[Bedrck47]

I want to say it's the 02 sensor on the drivers side the 2ed one down

Bank 1 is passenger side Sensor 2 is after the cat

 

[case2001]

Ok thanks. I crawled under her and looks like wiring is fine. Any tips or tricks for replacement! Does the connector unplug somewhere? It looks like the harness runs up over the transmission.


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[Bedrck47]

there should be a connector in the line also there is a special tool for removing O2 sensors available from most parts stores

 

[case2001]

A special tool??? Can I just use a line wrench on it?


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[stamp11127]

If there is room for the wrench, use box end only since they can be tight.

 

[case2001]

Ok. Going in tomorrow after lunch.


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