Which O2 sensor do I need?

[richvtws]

Hey all.. 97 Explorer 4.0 auto (X motor) got the error for the O2 sensor for bank 2 sensor 1 (I think the code was p0156 but that was the text on the scanner) .. Can anyone tell me which one this is and where it is?

Thanks in advance.
Rich

 

[richvtws]

anyone ?

 

[Cobraguy]

Let's see...4.0 V6...Bank 2 should be the driver's side. Sensor 1 is the first sensor...in front of the cat.

 

[Runnin'OnEmpty]

You're in luck.....

And I do believe that's one of the easier 02's to access.
It should be located on the driver's side header pipe,
near the frame rail.

HOWEVER, if the code is indeed P0156, then that's a
downstream O2 sensor fault on bank 2.

You might want to double-check the code.......

 

[Cobraguy]

Good catch ROE...that is correct.

 

[Runnin'OnEmpty]

Thank you Mr Cobraguy.