Hi, I am new to EFI Live and programming, i have purchased a new flashscan v2, i need to program a new A50 TCU for an allison transmission in a Silverado.

I have been told to program this unit you have to download the file from ACDelco, I don't understand that, because this is what unthought this unit can do, i was told that because it is new TCU you have to download the complete file from Acdelco, i was told that a tune file extracted from a TCU will not work as it is not complete.

This i found out requires another expensive piece of equipment J2534 compliant interface.

Is there a cheap version of this hardware that i can purchase, if not Is there any way around this, as i only want to program one TCU for my truck.

Thanks