'''''That is weird. Is there fuel coming through the pipe from the pump? '''''

yes m8, there is fuel cuming out the filter pipe with plenty of pressure, but theres no pressure inside the metring unit, iv tried tappin the flap 5-10mill whilst turning it ova, i even tried pushin down on it a couple of inch an it makes this buzzin sound tht sounds electrical from sumwer behind the inlet manifold area ???