Help with my bosch 044 inline fuel pump

[Siegerd]

Hi

Yesterday i've installed my 4l fuel surge tank and bosch 044 in line fuel pump. I've kept my original in tank fuel pump to feed my fuel surge tank. I've installed the fuel surge tank like this setup



And here is a picture of how the installation is now:



1: return to fuel tank
2 : return from engine
3 : from fuel tank
4 : from bosch 044 to engine

here is a picture from the original fuel pump:



1: to fuel surge tank
2 : return from fuel surge tank

I've kept my original fuel lines that go to the engine so i've placed the stainless mesh fuel hoses on to the orginal lines.

For electronics i've used a relay for the feed line (that comes from battery) to the bosch 044, the relay is controlled from the original fuel pump.

Now the problem is: when I start my car the pump is working and there comes fuel to the engine from the bosch 044. But after 2 seconds the engine stops.

I've have no idea what there is wrong with my installation setup. Could anyone help me please?

Thanks in advance!

[David]

Is the pump running when the engine stops?