Which O2 sensor is this and the location. Want to replace as code is coming up, but not sure on the location. Code comes up as bank 1 sensor 2, o2 high voltage. Thanks

 

I believe its the pasenger side upstream

bank 1, sensor 1 is driver upstream
bank 1, sensor 2 is passenger ustream
bank 2, sensor 2 is the sensor before the cat

 

is that on the 318 or 360? or is there a difference? i only have o2 sensors before and after the cat.

 

from 1997-1999 all 360s 2wds have 4 oxygen sensors the rest have two. I forgot to add one up there. so it should be

bank 1 sensor 1 driver side upstream
bank 1 sensor 2 should be the passenger
bank 2 sensor 1 is pre cat
bank 2 sensor 2 os after the cat

 

So I went under vehicle to locate the O2 sensors. On my 2003 Durango R/T. I can only find 2. One before and one after the resonator/Cat. Am I only supposed to have 2, and the code will still be for sensor coming after???

 

it would be the sensor after the cat