1988 190E starts for 2-3 seconds then stalls

[consumidor]

As the title mentions: my 1988 190E starts for 2-3 seconds then stalls.

As I understand it, this is because the cold start injector gives it enough fuel to start for a couple of seconds. It is obviously not the ignition, or the fuel pump or fuel pump relay because I have checked all, and it does run for 2 seconds or so.

so I have narrowed the problem down to where the fuel delivery is failing. It is going into the fuel distributor but is not getting to the individual fuel lines. Thinking it was either the fuel distributor or the EHA valve, I replaced both.

I am on my 3rd fuel distributor now and it is still doing the same thing.

If somebody has a diagnosis for this please help. I have been struggling with it for 2 months now.

Other observations to narrow it down:

-No fuel pressure on the fuel return line.
-No fuel flow/pressure through the fuel distributor to the injector lines.
-Adequate fuel pressure into the fuel distributor.
-Adequate pressure to the fuel pressure regulator.
-Adequate pressure to the cold start valve.
-Fuel pressure regulator opens at about 90 psi with compressed air.
-Replaced: fuel pump, fuel filter, fuel distributor, fuel injectors, EHA valves, ignition coil, rotor, cap, wires, spark plugs, and valve stem seals!
-Car had not been run for 4 years.

I have searched all over the internet for answers to this question, but have yet to find a solution.

Thanks!