stooge75 liked a post in a topic: P0251 - Injection Pump Fuel Metering Control A Malfunction (Cam/rotor/injection)
Auto1 replied to Z3 MON's topic in Ford Mondeo / Vignale ClubThis fault is either the IMV,one or more injectors,or the fuel pump,or a COMBINATION of these.If you do not want high repair bills , don't buy a common rail engine. The fault can be double barrelled also.ie One fault hidden behind another.You might find one really bad injector with excessive leak off,replace it,and still find the code returning, as the pressure requirements seen by the ECU still have not been met. You then need to change the pump.The pressure loss in this case is due to the injector and pump. The pressure is carefully controlled,but the ECU can only control it, if the components within the system are within tolerance.