[elkgrove65]

I have a 05 Frontier Nismo and it just throws a P0430 code. I know that the code refers to "Catalyst System Efficiency Below Threshold Bank 2". Since the truck has 2 CAT for each bank, which cat the code is referring to? The one in front or the rear one? Also just to verify, bank 2 is the driver side right?

Thanks

 

[nealinnevada]

Number 1 cylinder is front passenger side, so bank #2 is driver side.