2007~2015 Catalytic Converter/O2 Sensors/P0420 & P0430

Hi All-

New member here needing some help with a 2012 CX9 (140k miles). I have persistent P0420 and P0430 codes coming on, codes are coming up as current, stored, and permanent. Both cats are new, as well as the O2 sensors...which I believe may be my problem. I can only locate 2 O2 sensors total on the car, one on each Cat...am I missing something? If I am that explains my problem. If there are only 2 sensors total then I am out of ideas and need some help.

Thanks!

Brian
 
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