strange one this I have sorted the running problem but cannot get my head round the symptom your thoughts are most welcome.

complaint intermittent loss of power and also cutting out but will not restart until vehicle is stationary. codes read one for MAF sensor which was the lack of power and P0087,P0093 fuel high pressure regulation.
Yes they were right the engine would cut dead randomly, would not restart on a bump by just dropping the clutch or even flicking the ignition switch of and then cranking, stop the vehicle moving and it starts on the button.
problem solved by changing the fuel filter.
the bit I cannot get my head round is the non restart until vehicle stationary