Not sure if this has been posted or not, i loaded a custom tune from Tom then drove it a few days. Made a few changes and then had problems.
I found the unit cant have anything plugged into it before the program. No USB cable and no firewire which i had plugged into mine at the time.
DX3?.. huh?.. well ZX3 = Zetec the 05-07 has a Duratec so D