I have now got an inclination of the problem as in my first posting, I put £20 of Deisel in the other day taking it to just over half full, I drove all the way to Wednesbury with no problem at all. By the time I got there I had just under half a tank, I turned right at a Junction and the car cut out.
Driving back home it kept cutting out at roundabouts (going right) It was fine on the M6 and the A14, It cut out every time I went right (but was fine straight and turning Left) I now believe it is a fuel feed problem as it is fine when the tank is over a quarter of a tank but has the problems under this. and if it gets lower than 1/4 it cuts out even driving straight.
So I now know it is nothing to do with the electrics or camshaft sensor.
Any Ideas on the possible causes and how this can be corrected?
Cheers
Reb