P0141, Bank 1 Sensor 2 C43

[C43inNC]

Need to replace this O2 sensor. I know it's the back one, but is it right side or left side? These things confuse me. If you want to be REALLY nice, just link me to the O2 sensor to buy :) My neighbor is replacing it.:cool:

[Mike51809]

It's your downstream o2 after your cats, the bank crap is very confusing I know lol You could also try to pull out the o2 sensor and clean it as well because it needs the outside air to compare to for proper cat operation and over time the exhaust gasses make it dirty, somethin that might be worth a try