Hello everyone this is my first Focus,06 1.6 tdi,have intermittent light flash on dash,red in colour and round ring inside star type shape,says engine intermittent fault in hand book,had code read and Pooo1 fuel pressure regulator /sensor fault ,what and where is this any help appreciated,

 

I have had this too, what did you do to solve the fault, and what did it cost?
I have been trying to get in touch with my local Ford dealer and they have not come back to me, very unhelpful!