Hello, if you two o2 sensors in each bank, then bank two sensor two is after the cat, passenger side. I wouldn't change aything else, if the codes are gone.
I always thought the sensor after the cat just monitored the cat efficiency, other than setting a code, I didn't think the computer would react? I have seen conflicting info on this point.
Monday, March 9th, 2009 AT 1:47 PM