Car starts ok, drive one mile and engine management light comes on and loss of power, Fault code P0087. Removed high pressure pump [ CP1H ]and had it reconditioned with new IMV valve, Injectors reconditioned, Rail pressure sensor replaced,wiring replaced to ecu from sensor. [ Rail pressure signal no longer middle connection. ] No low pressure pump in tank,low pressure pump on back of high pressure pump, did fit low pressure pump to system but no difference. Rev car up in garage no problem but drive on the road and it goes into limp home mode, some times fault code P 0093 also appears and engine stops, knock off ignition and starts ok again and runs for another mile. any ideas ? John