what are they? im trying to tune out my rear o2 sensors since I took them off with my header install, but i cant seem to figure out the code. as soon as i have it i can just deactivate the code in the computer.

 

Since you're looking for both banks, both sensor 2 it looks like you're looking for codes P0161 and P0138

Edit: False alarm, those are just heater codes, there will be more...

OK, here's all the codes that pertain to the aft-cat O2's

Bank 1: P0136, P0137, P0138, P0139, P0140, P0141
Bank 2: P0156, P0157, P0158, P0159, P0160, P0161

 

Hayne's say 420, 421, 430, 431, and the ones Slvr put. All I can see on HPTuners for my car is the 420 and 430, but you probably have a few more. Have the codes popped up? I'm guessing no.

 

Stan, all the codes you have are listed for sensor 3, not sensor 2.

 

thanks

 

Spec, don't you know how to use Google!!

 

use what? [&:]

 

Ah, okay. I thought he was wondering which codes were for your cat not working.

 

He was, and those would all be sensor 2 since F-bodies have 2 cats, and thus only 2 aft-cat O2 sensors.