Thanks for some fantastic advice from Rob - there wasn't an ecu for the 4wd - but it just so happens that a friend with a K reg Cav Turbo who isn't running his as a 4wd had the ecu so we pinched it and plugged it all in and its fine!!!!
Everythings lighting up when supposed to and MY GOD does that thing grip and pull now
Its also running at 14 psi/1 bar and is lovely and quick now - No more spinning WOOHOO!!
A very happy Kat
Thanks for all your help