Got it running again in the meantime, was very stupid actually, I hadn't the pipe on which you can adjust your CO with, so that's why it didn't run

Anyway, now that it runs it runs excactly the same, wether the fuel computer is connected or not....

What I've tried:
Another electronic fuel pressure regulator, no effect, measured the connector, had 8,1 Volt, measured the current, was 10mA, which should be the mA when engine accellerates, but the engine was running idle...
Also measured some off the other sensors(auxility air thingie and air potiometer, or something) and those also got the given voltage.
I don't know what voltage is coming back from the air potentiometer(that's how it's called in the wiring scheme), so that's something to test.

Well, that's it for now, you still think it's the metering unit???

Here a night shot off the car, hope u like.