This article will show you how to easily return your truck to the stock programming. This is necessary for various reasons like trips to the dealer or smog checks. Once the truck has been flashed back to stock programming and the tuner hardware removed, it is literally like the tuner was never there…
With the key on and engine OFF:
Tap on any guage on your mm3 display to get to the main menu:
Press “Main Menu”
Press the “ECM” Button….
Press “ECM” Again…
Finally, press “Return Vehicle To Stock Software” and follow the prompts through the flashing process. Once you have completed these steps you are finished and your ECM will now show the same software as it did when you drove it off the dealer’s lot.