Hello, I have a problem with a Master 2,5 dci (114 hp) from 2003 with the GU9 engine. The vehicle has no exhaust gas recirculation or AGR valve. First of all the story: The engine had a problem with the headwheels, which were partly completely destroyed and thus neither the steering times of the camshafts nor the position of the gear of the injection pump were still correct during removal. What was done: All the headwheels renewed. All injectors renewed, or against general überh OT-Gerber of the crankshaft renews camshaft sensor renews timing belts with deflection, & tension roller renewed. Control times of camshafts and position of the drive wheel of the injection pump are correctly positioned according to the workshop manual. Diesel lines (pre and return) are properly connected. Compression test is usually not stored in memory!!!! It remains to be mentioned that the engine has made terrible noises The problem is as follows: The vehicle does NOT have a hand pump or pre-shipment pump in the tank or inlet but only a suction pump appears in the injection pump and you can hear that when the ignition is switched on, it then runs for a few seconds before it shuts down if it doesn’t start. The system also doesn’t pull air and the fuel we d is also introduced to the high-pressure pump. The problem is that no diesel will reach the rail pipe even after long start-ups. or even a little bit of pressure is built up. Also the return from the rail pipe or even the injectors remains dry. I really have no idea anymore and hope you still have one!