Navara d23 jerks in cold condition

Good day. I have a problem with a Navara d23 from 2021. Vehicle jerks when the engine is cold strong. When it runs 40 s it is quiet again. LMM, AGR and EGR is new. Low pressure lines are fine. Suction bridge cleaned since that is the fault, was full of oil slurry. When you pull off the EGR it runs quiet in cold condition. When the plug is re-plugged the engine jerks again. Values look good from EGR regulates normal. Think a temperature sensor could cause problems pressure high pressure pump is constant at 600 bar in idle. I would be very pleased about a help. If you have had or know this error before, I am very grateful. Mfg bjoernm