Swapped out my 5.3L for a 6.0L a few weeks back and installed a TBSS intake on top. I got it to run with the stock tb with an adapter plate for the time being. Once my 90mm LS3 throttle body came in, I put it on along with the x-link. As soon as I fired up the truck, the check engine light came on. When I hooked up my code reader it showed codes P0220 and P2135. Both related to the throttle circuit. Anybody had the same or similar experience? Or can offer some help?

 

You need tb relearn.. did you get it tuned for 6.0 and tbss/90mm?

 

Yeah, already got the retune for new engine and tb. What do I need to do for tb relearn?