another light load issue

[Maj]

just measure the flow out of the tank ,
take a bit of 5 /16 hose and slip in on the outlet
and run it to a cheap kitchen measure.
Bypass the ecu switching of the fuel pump with a wire , bolt one end to the frame and strip back the other to push into the back of the yellow/ black stripe wire at the fuel pump relay

fuel pump then works with key switch and you can measure a 30 sec flow
don't have to pull anything apart untill you know its not right