Recently bought jaguar 2.2 diesel it has done 100k miles bought from online auction bidding when car came started it was shaking and give white smoke out . Give it good run on motorway and added dpf cleaner and did force regeneration . The smoke cleared out and no fault codes coming for anything . The car is shaking /judder on idle and engine shakes ? Can anyone help ? No fault code for injector according to my mobile mechanic