[Hoagie90]

Alright, I have managed to fix every error code that has come up on my truck except for the following: 0036, 0056, 0141 and 0161. Now I know that every one of these deals with my O2 sensors. Particularly my downstream sensors (if I am mistaken on one of these codes please let me know). Here's the kicker, my truck was pre-owned when I bought it. The previous owner installed a BORLA exhaust system. I love it, sounds great. Problem is he chopped both downstream sensors, besides that there is nowhere to install the downstream sensors. Is there a way to override this error message? Or am I stuck rewiring and replacing the exhaust?

 

[Silvery13]

Is it a catback exhaust? All the O2 sensors are forward of the connection where the Y pipe meets the intermediate. One sensor in each cat and one right behind.

Any pics?