As I mentioned in my build thread Pete, my ECU bricked itself and wouldn't allow any changes to the tune to be flashed onto it. I don't know the exacts of it but Rob Herrod worked out that it was the file size that caused the bricking. Remembering that there are 50 odd tables that can be adjusted in the transmission and god knows how many in the engine, with the two combined -- pit lanes trans tune file and the amount of tables my tuner told me he played with in the engine tune -- it made the file to large for the ECU to accept it. If the tune file has a crap load of changes from standard then there is a lot to change in the ECU.........I think I'm right here -- someone will set me straight if I'm not. Rob Herrod pointed those involved to the work around with my ECU and all sweet now. Sorry to go a bit off topic OP