Techbod what am I looking for in the diagram you posted? Right, the second fault code we got was C1390 not P1390. Anyway we cleared all the codes and ran it again and got P1288 and C1390, the P1288 code appears to relate to the same fault as P1291? Live data from the scanner shows the fuel rail pressure as 30 - 40 bar at tickover and 60 - 70 bar at 2000 rpm, does this sound about right? Has anyone got the specs?