Hi
From the Fuel Pump relay

1x Thick red - This requires a 25Amp feed

1x Thick Black/Red - This will need to be connected to the live on your fuel pump

1x thin Black/Red - This will be on the same terminal as the above but will go direct to your ECU

1x Green/Red - this will be from the middle terminal and again go directly to your ECU

1x Brown - connect this to Earth

1x Black - connect to Black on coil
Sound like the air flow wire you have should go to ecu?
Hope this might help