Hey guys question...I just installed my header and downpipe and I was wondering the pcm is throwin code 0140 and its for bank 2. Is bank 2 the rear 02 sensor?

 

0420 is what I blow from having aftermarket exhaust.... Never had that one before

 

got any leaks? if not check the o2 sensor itself...i had some codes thrown because of a leak and after that i still had some codes and put an antifouler on the o2 sensor so it would get less of a reading and it works fine now!

 

I completly disconnected the rear o2 I just wanted to make sure bank 2 was the rear and not the front I have no rear o2 its a catless downpipe. When I purchase the stage 3 from zzp they will tune out the rear o2 so im not worried about that and besides its not hindering my driving at all.