Wonder if anyone can help please. I've got a 2009 Doblo 1.9 deisel turbo. For a couple of weeks I've been having trouble with starting it. On trying to start it, it would turn over but badly mis-fire, after trying 3 or 4 times it would run properly. Found out by trial and error that starting it without touching the accelerator when cold it usually starts first time, and when warm depressing the accelerator would usually work. Problem re-occurs every now and again, particularly when trying to re-start after a short trip. Any ideas what might be causing this problem ?