XUD9 starts but dies in 2 seconds

[Robert Gladh]

The car will run on 3 cylinders, take an injector line off and reposition it so its sticking up, and put the injector on the end - this means you'll visibly be able to see if its firing.

Try starting the car again and look to see if the injector stops firing when it dies. I suspect it will this sounds like a fuel issue.

Run a dedicated line to the pump with prime bulb, start and prime bulb at same time see if it runs for longer. If so then your fuel feed to pump is the issue. If it still dies then your pump is the problem.

Ok have been checking some things this weekend. Went back to basic and started with locking the engine, the crank, camshaft and pump is 100 % perfect.

Removed the outlet from the filter and filled a bottle with diesel, no bubbles at all was exiting the tube - No airleak before filter in other words.

Then tried to crank the engine while one fuelline was off from the pump, only a small amount of diesel was coming. Think we are geting close to the problem right? Should also mention that this was while the plunger was removed. As i said in my first post, last time the car was running was when we had used compressed air in the hole that the plunger sits in. Is there something in my pump that blocks the way? Have found another lucas pump, actually a whole engine for 150 €, is it worth considering to change the shitty pump for another shitty pump or is it better to go bosch? 
What could be wrong with my pump? The problem seems to come and go because there was fuel coming from the end of all of the four fuel lines yesterday.

There seems that there is two separate coils on my pump, the normal immobilizer one and then another one that looks like a injector in the bottom, what does that thing? Attached on picture below.

As you way find out while looking on the picture the new one is of a different model than the old one... But what does this thing do, can blow through it without any problem.