Thanks for the reply. I had noticed that chart as well, and that was a nice bonus for sure! The calibrations seem to be a confusing mess. From no I/H, to injector buzz, high I/H, low I/H... I want to eventually get the rollback (Christmas coming up, wifey has big plans on gifts
), just wanted to know if this was one of the safer I/H versions and whether it could wait a few more months or not. I just have a suspicion that since the VXCF7 programming was in there at one point that it probably isn't. I do know that I took a huge hit on mileage as soon as I got the truck back (3-4mpg).