Originally Posted by
MoTruck
After researching it a little more, I bet your ETC problem was in the tables. The 2006 tables I have are 25%-35% lower than the 2005 tables. Both tables apply to a 6.0 2500hd. I bet this much difference created a problem with the ETC. Did you have any problem re-flashing back to the original operating system? I want to try it, but not fry my ECM in the process. As long as I can get back to the original program, I am up for a challenge. I just remember a big warning about messing with the ETC, and locking up the ECM. Thanks for the help.