rough starting hdi

[rd070707]

hi guys, want to get to the bottom of the niggles on my hdi before it gets any worse. Basically when started from cold, it always starts first time but as it fires it kind of shakes for a moment with the revs bouncing up and down and after about 10 seconds, or if i give it any revs it will settle down alot.

general running from cold is still a bit jumpy and the engine sounds almost like a pulsing noise, even when accelerating. it is only when the car is warmed up that it begins to drive better.

now my injectors are very tappy, to the point that it sounds like a machine gun whenever you put the foot down lol, and when the car is completely cold ie first thing in the morning, there is quite a bit of grey smoke out the back until it heats up a bit.

thats all the symptoms i can think of if anyone has experienced similar or is more sure exactly what it is, any help would be great

cheers