You can use one of the ME ECUs Slow/Relay Low Side (LS) drivers to drive the fuel pump. Note this must be done via an automotive four-pin relay as fuel pumps can draw 20+ Amps. 


If you do not have enough Relay Low Sides, then you can of course use a PWM Low Side instead.


Please note the diagram below on how to achieve this:

The fuel pump will turn on and ‘prime’ for a few seconds with the ignition becoming live, then turn off. It will then only run again when the ECU detects an RPM of the engine - this safety feature means in the event of an accident, the fuel pump will turn off if the engine stalls.


Note this is a great initial indicator that power and the ECU is all working - if you don't hear the fuel pump prime after turning the key on, then its time to check fusing and wiring - it is the most basic in-built ‘test’ feature of the ECU.