lane8080

I have just got myself a 54 reg 2.0 tdci mondeo. it used to judder around the 2thousand rev mark, a kind of miss-fire. now after drinving it the engine management light has come on and the glow plug/ coil light is flashing at me, i now have no turbo boost at all. At first i thought it was a injector that was blocked but since the lights have come on there is no judding at 2thousand revs,, could this be a sensor??? has anyone else had simlar problems.. any help wpuld be nice.