dasdais

Hi there, I own a 2.0 c5 although broke down on me after driving only 6 miles the other day, I got a tow home and plugged into mapping computer. This read fuel pressure problem. Causing car to cut out. The car did start once code reset but again 5 miles later cut out. So I purchased a new Citroen Fuel Pump. Happy as larry. BUT NO (help) It still breaks down. Citroen say there is no fuel relay, but what else can this be????? Citroen have no clue and can only sugest to replace every relay and fuse in car as should fix problem??? Im sure other relays and fuses ie for cigarette lighter or washer jets etc... have no relavence. ANY IDEAS??? any help is a help thanks. Darren