Was curious to what the VIN # change actually does. I have an ECM with an 02 express van calibration on it, and was wondering if changing the VIN # changes the description on the 'Controller Details' page, like to "02 Silverado" instead? Also.......does it change anything else in the controls? The only reason i could ever see needing to change the VIN would be for security issues when communicating with a BCM. But if there are other reasons, fill me in.
