Peter_Tremonti
01-08-2020, 12:35 AM
For reasons that will baffle and offend some people I have swapped in a non-rod-through-the-block 5.3 into a 2001 Yukon XL Denali. I kept all of the original intake/exhaust/sensor stuff from the 6.0L and it seems to be running fine. It doesn't hesitate or smoke. Doesn't even throw a CEL. I'm feeling like it shouldn't run as well as it is but I'm not complaining. What I'm looking for is a bin file to flash into the currently installed 411 PCM with a correct tune for a 5.3L with the AWD transfer case (No buttons to push to change HI/LO/2WD). I saw the list of 2001 bins in the tunerpro post but am not sure if any of those are correct or which one to pick based on the short file names. Any help would be appreciated.