Hi. Having a nightmare with my TDI (asz). Got a misfire under medium to heavy acceleration. No fault codes showing. Injectors have been out a couple of times though. Could the seals cause this type of problem. There is a fairly strong smell of diesel when starting from cold as well. Just had one of the injectors replaced at a main dealer because the car was undriveable. Problem has decreased but they say all of the injectors needed replacing. Just the £2000 then!! Can they all go at once? Head has just been changed because of cam failure.

Is it possible that all 4 injectors could have gone wrong at the same time? Replaced the wiring loom already so that is eliminated.

Any help would be greatly received.

Cheers.