05 KJ Cat codes

[JustSumDad]

2005 V6 Canada exhaust question.
I thought these had three catalytic converters, the one I just looked at only had two. One for each bank then into Y direct to muffler...
The car is throwing codes but the CATs do appear to be working.
Jeep runs fine, IR temp read on the pipe just before and just after CAT's both sides are about 100 degrees higher downstream.
Codes pulled via Torque

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Any input on likely fix here?

The P420 developed after test drive, was not present until fully warmed up.
The P430 and PO132 were present all the time.

Thanx

 

[JustSumDad]

It was suggested on FB group that the upstream O2 may simply be the only issue. Causing rich condition that creates the secondary issue of the downstream codes.

I wonder on that theory as the upstream error PO132 is on bank 1 and when I first took codes the downstream error PO430 is a bank 2 error.
Bank 1 upstream PO420 developed while on test drive and showed on second run of pulling codes.