okay please please please help.

i fitted a 200tdi to my 90 and im getting no boost. i think i am getting forced air (i dont know who much i should have) into the intake manifold but still no boost. i also took the top of the fuel pump and pressed down the up fueling for the boost but nothing changed i was expecting lots of black smoke as i was doing this a idle. any ideas guys or any more test i could try???