[Vwdiesel] I have an idle, but it dies on acceleration

[Mfgavia at aol.com]

Its an 82 diesel vanagon with a recently  installed, used 1.9 AAZ TD that 
sat for 5 years without use. 

New glow  plugs, fresh fuel, and new air and fuel filter have provided 
quick starting, a  fairly stable idle, and the unmistakable whine of a 
turbocharger. 

It  takes quite a bit of accelerator movement to gain any increase in rpm; 
and if I  accelerate it all the way, the engine rpm does increase before the 
engine simply  dies. I can restart it without difficulty and repeat the 
process right away.  

After the engine warms up a bit, the idle gets less even and it  eventually 
dies without trying to accelerate it. 

I ran two cans of "diesel purge" through it directly  out of the can; the 
idle evened out, it ran at a higher rate of speed  without quitting, and it 
died if I released the accelerator too  quickly.

Using the fuel return line, I have suctioned fuel from the tank  through 
the filter and injection pump. I have opened each injector line a bit  and 
bled fuel out. I have checked the timing and everything appears OK.  

Any thoughts? I've tried everything that's worked for me with other  
engines. 

thanks!

Mark 
Portland
82 vanagon w/ 1/9 AAZ TD 
89 jetta  Diesel