Hi everyone just bought another 300tdi was going to use it for a donner but its much better than I expected,so I'm going to keep this one and sell the other. only problem is the previous owner must have turned the pump up and I was wondering which would be the best way of resetting the pump without losing the great acceleration it has, it smokes quite a bit on acceleration otherwise great. should I adjust the smoke screw first ,the diaphram or the star wheel ? its a 1994 model egr blanked off 
