WHY SPRINTER 211 Cdi

Hello dear Sprinter_Fans So I drove with my sprinter on the autobahn about 30 km and then the car just went uas and didn’t start immediately or.. and went sofrt out again so after about 20 min I started it again then he stayed on but if I gave gas he went out again!!!! so waiting for ADAC, during the wait he went on and if I gave gas this time he didn’t go out so I started running in again ng not because he went out again!!!! Well then came AD AC and said that it could be the high-pressure pump but he tested it and got the genung current or pressure pure… according to his statement we were going to look again after the pressure sensor from the reel bar behind but the order is also injectopre all 4 new about 2 months ago so that we can have sprinter read out he showed us but no errors except on CAN bus anything with driving signal concerning the speedometer but he works to me how fast I’m going!!! so d ann we deleted everything and the front pressure sensor from the rail strip searched again the same problem…. so then I drove today because car really quenched and he didn’t go out but I don’t trust myself with the car anymore on the highway….. That with which he just went out the problem I had where the injectors were defective exactly the same but why does the problem occur again??? Engine runs well and round I don’t understand or CDI the TD had no Nicht so ne fucking problems cih please for help….