as above chokes alittle bit every now and again no increase in smoke when this occurs. Thought it might be EGR related so took it of seems to be free moving and not much carbon build up in it cleaned it up anyway. Still happening any ideas???

Also getting alot of black smoke from after 2500 revs and alot by 3000 revs again thought it might be egr related but it wasnt in bad condition any other common causes??

Cheers in advance Paddy