I just replaced my 2000 Silverado with a 2019 Silverado LD LT (2018 body in 2019 year, Square Wheel Wells). Is there an PCM internal counter or tracker which tracks PCM configuration changes? The truck is under warranty for 18 more months and I pulled the original tune file so I can restore back to original tune. I plan on removing AFM/DOD and adjusting injector shutdown max speed as my initial tune. Already have the file edited but don't want to flash until I figure out if there is something in the PCM which would show up at the dealer as a modified PCM if I need to take it in for warranty work. (I would flash back to original before taking to a dealer). Any info is appreciated. I have many years of industrial control system computer (PLC's, etc.) experience and know some "controllers" internally track changes/flashes and others don't. Thanks in advance.