my daughters car had to be towed in by the rac who plugged in and said it was a fuel fault but not what fault.We had a mobile mechanic come down who told us after plugging in that it was one injector leaking back and high pressure injector pump low both have been changed but to no joy.Have tried crank and cam sensors high pressure rail sensor checked ecu for water ingress and conections for corrosion also plenty of fuel at the fuel rail no apparent problems with any of the above any ideas?????