Location of o2 sensor? P0161 CEL fault

[rhallman]

I have a P0161 fault that is showing 2/2 sensor heater bad. Where is the Bank 2 sensor located? Driver or passenger side? I know its the downstream after the cat sensor, but not sure if its driver or passenger side?

Thanks...Rich

 

[Allan]

SAE /OBD-II states that bank 1 is the bank containing the #1 cylinder.

Bank 2 is the other side.

 

[Roadrunner]

Passenger Side - Downstream of first Catalyst