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O2 sensors and p0430


Quadragin

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We have a 05 GX got the p0430 bank 2 catalyst....

replaced all 4 o2 sensors

but my numbers are really weird

any help would be great 

I have attached images from AutoEnginuity . make not of idle and 2000rpms

bank 2 is running 300F cooler

66D4FCE5-6D88-453F-B978-E4D820901906.jpeg

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A1581B2D-3B4D-4461-8D21-EB405A8B3FFC.jpeg

0A14C9D8-834E-4368-8BAB-4F4C4C3D2DC8.jpeg

DC844176-03B1-4253-BCF3-42AFE03C3B46.jpeg

23F41C3F-5C5F-4F21-977F-C47C48B97B0A.jpeg

083B7DA1-0C94-45CE-A57E-595F86B1B59E.jpeg

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It looks like there may be air leaks in the exhaust system causing excess oxygen levels before the cats/lambda's

Best way to prove/eliminate this is to measure the oxygen levels in the exhaust gases....should be as close to zero reading at idle/cruise 

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