P0430? What to do?

[staircasesurfer]

Black_Boxster did you ever resolve this issue? What were your findings?

I am in similar situation, Occasionally popping CEL for a P0430. Hoping it is not the cat. Planning to check o2 voltage with code reader to compare pre and post cat 02 voltage on both banks.

I may just need to give it a good spirited drive or two, too much commuting.