I know that one or more of my O2 sensors is bad but can anyone tell me if the typical OBD II scanner that you borrow from Advance Auto and Autozone will tell me which one? By that I mean, will it tell pre or post cat, left or right?

Gary
97 3.8L

 

Yes. It will tell you exactly which one it is by the code.

 

I have a 96 cobra and I just had that problem, and they told me that each of the four sensors are different is it true

 

o2s11=bank 1 sensor 1, o2s12=bank 1 sensor 2
o2s21=bank 2 sensor 1, o2s22=bank 2 sensor 2

Bank 1= the cylinder head where #1 is located.

Understand?

 

I got it, thanks for the information