really did not think id get to the bottom of it but today i spent 5 hours in fords workshop with there best technician and ford technical. we wiped the pcm clean and then completely reprogrammed the whole car, it took a little longer than anticipated but we got there in the end.
all i can say is what a difference, now car goes like it should and finally i have the car i payed for.
hats off to the guy i bought it from as he paid for the whole lot to be done, the cause was a pcm update that had not been done properly, they had not programmed the pcm to abs module or disruted the connection and therefore the car did not know how fast it was going and not letting it boost.

the vin number in ecu now matches the car and the fault code has gone. top job