S50, engine starts and then shuts down

[tuttifrutti]

As topic, i have put a 94model s50b30 into my e30 and i drove it for about 30 mins and then suddenly it just shut down. It does not have EWS.
Now when i start it, it can run for 1-5sec and just instantly shut down like it's completely out of gass or gets a "warning" that tells it to shut down.

I've tried to change the gas pump and i still got the problem. (i havent tried to run it manually, maybe that will solve the problem?)
The dynamo is working.
The battery is powered up.
The wireing is done right.
The enginge got enough ground (minus from the battery).
It's of course gas on the car.
The Fuel pipes, fuel hose's and filter is changed.
One of the relay's is making some wierd sounds, its number 2 in this link:

http://bmwfans.info/parts/catalog/E36/Coupe/Europe/M3-S50/LHD/M/1994/february/browse/engine_electrical_system/relay_motor/

So anybody know what the problem is?
Regards Steffen

[e30s52]

Did you check the fuel filter? it might be clogged or really old. Also this is the m30 section and not the 24v section.

[tuttifrutti]

Yes i have also changed it,
Ohh, i will write a new topic there.
Medi can just remove this