The ECM has to be powered up and awake before you can scan it or read the tune out. If the ECM isn't turned on when the ignition is on, and you do a...
I download stock tune files from the tune repository for 2016-2018. The 2016-2017 files match the one above from Evan's. 2017 was an auto everything...
Sorry I don't think that posted like most people have them on here. This is my first time posting on here. I'm happy to follow anyone's direction on...