I am starting to come around to the fact that the car needs coding too. I have run NCS Expert over it, and it assumes its still got the Bit II module in it, and faults out when I try and access it. NCS lists 4 different TCUs and 4 ULFs but none of them find the unit in my car. I guess I need to understand which module holds the coding and turn off BIT-II and then find out how to add a TCU... Any suggestions??? I have the instructions for tuning stuff off, but not adding a unit.