Thanks for all replies.
I think my car is a serial 1 and has 2 large dials ( speedo / rev )
and 4 small dials confirming DaveW comment.
There are 2 identification plates on the engine .
1 Serial No/date D2247/105DC , Model CSG630 , Special Equipment
Ford Power Products etc
2 Cleveland Engine plant 2 Ohio , 2D 757 BA , UT2 , 16 , 03/15/06 ,
It would appear to be a Ford based engine.
I think I will take the easy route and book the car into my local Ford garage to identify the fault code and will post again in due course.