mk2 1991 gti 8v wont start

[TIMMk2]

Hello all, i have my 8v gti that wont start it was sat for about 6 months charged the battery it ran i drove the car about 200 meters then let it tick over and after 2-3 minutes of ticking over it cut out and now i cant get it started.
It was very low on fuel
I have put fuel in it, i can hear the fuel pump prime but all it does is turn over and will not fire!
It also has a spark!
Not sure if its a clue but when it cut out the oil pressure buzzer came on?
Look forward to peoples advice

[Crasher]

Does the fuel pump run all the time the ignition is on?

[TIMMk2]

No i dont think so but the pump sounds no different to the other mk2's i have had!
Should it be running all the time?

[Crasher]

No.

[TIMMk2]

I put another fuel pump relay as i had one that i knew was good!
Is there a chance its the engine earth?

[Crasher]

If the engine earth was bad the ECU would be toast and the fuel pump run all the time.

[macmillions]

If it was sat for 6 months with next to no fuel, is there not a chance it has pulled some muck up from the tank and blocked the fuel filter?

[TIMMk2]

It has fuel up to the fuel rail

[Crasher]

So it has fuel at the rail and a spark so the fuel isn’t being allowed in so there is no injector pulse. Check that the (red/yellow?) power feed wire at the fuel rail has a fuel pump running (so under cranking) 12v.