mines doing the same but it was saying low fuel pressure to rail im finding it impossible to find the problem the code is p1e45 capacitor 1 voltage if u no anything about that

hello im new on here and dnt no my way round a computer much im looking for any help as my freelander td4 is loosing power ive had the fuel pumps changed and the high pressure sensor and its still doing the same anyone got a clue wots wrong with it ??????????????????????????????????????????:(