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They have a web page that you log into and their you follow instructions. Not sure if I'm doing things right and just uneasy about maybe bricking the truck. All new to me.

Thank you Cindy... No Cummins here. It looks as if I was not correct on can tunes. I thought I was to receive a couple of tunes to start with but with BB I guess I need to data log first and then I...

Looks like I was incorrect... My tuner is BB and if I understand correctly "Now" I have to datalog first and then send in some files to get the tunes... This is the first time I have attempted to...

OK, so far I have downloaded the EFILive software, updated and have the correct drivers for my system. I have connected the AutoCal to my truck, and read the truck original tune file. I have 2 files...

New AutoCal, plugged in and can't register to vehicle. Have no fricken idea what I am doing wrong.