Oxygen Sensor Replaced

Ok so I was getting code: P0430 Catalyst System Efficiency Below Threshold (Bank 2)

So I changed the passanger rear oxygen sensor... 7 miles down the road I get my light back on... I pull:

P0141 HO2S Heater Circuit Bank 1 Sensor 2.... The way i'm reading this its the other side??

Does anyone have any clue as to what might be the problem??
thanks!!

well your best bet when u are changing o2 sensers is to just change them all at the same time. u might have gotten a faulty one i have bought faulty ones before.