Toyota Camry Rear O2 Sensor P0142 Bank 1 Sensor 3 Diagnose & Replace

[@ThegreatBoso]

This is real detailed

[@cc7346]

Are both downstream sensors the same Bank1 sensor 2 Bank 1 sensor 3 ?

[@saabtech3510]

Yes. Four cylinder engine is: All Bank 1, Sensor 1-3. On a V-6 there are: Bank 1 and Bank 2, Sensor 1-3.