Attempted to download the tune file off a 2012 Chevy Camaro and a message reading no vin found was displayed. It gave the options to either manually type in the vin or continue without it i downloaded a file both ways and all the parameters are blank other than the fuel system tab. Owner says the dealer has reflashed his ecu due to having a factory ls3 put back in by them. not sure if this could be related. Any help is appreciated and I haven't been able to find any similar issues on the forums nor google.