Nissan Repair: 1988 nissan d21

Question
Have a 1988 Nissan D 3.0 Bought it out of state, Drove it 600 mile in one day, The truck started spitting and sputtering(fell on it face,Like it was getting choked out)(NO choke)Got it to a shop to Check out ''so far we have REPLACED,
mass air flow sensor,disturber,and Cap, cam shaft sensor, tbs,Checked the pressure of fuel,NO code from computer

Answer
Ted -

If there are no codes displayed, then it could be 2 things:

Fuel Pump
Ignition module in distributor


If the engine acts up only when it is warmed up, then it probably is the module, otherwise, have the fuel pump pressure and volume checked.

Hope this helps -
aloha
Calvin