You need to check the fuel pressure and delivery to rule out bad pumps or a plugged filter.
Is it possible you have water in the fuel?
Otherwise, if you have fuel (you should be able to smell it at the tailpipe if it is being injected), you have an ignition problem.
No experience with that, so can't help.....
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!