flashed

I have a 2009 Vmax with flashed ECU, x-pipe and Akrapovic 4-2 exhaust. The engine trouble warning light comes on, and stays on, but there is no error codes... When i access diagnostic mode, the D:60, D:61, D:62 and D:63 shows 0 or 00. The company who flashed the ECU say it is definitely not...