FPDM? There's no priming, or running, the only way I can get it to start
is to connect 12v directly to the pump, then it starts for a second and dies.
the lead back to the ecu I think is the control lead and it's not doing it's job,
may be a connection missing somewhere else causing the ecu to shut the
fuel pump control off. "I" has a 12v feed and I assume "K" is the control, ie
the ecu grounding K would switch on and off the pump the same way as the
FPDM would if it had one, I'm guessing the ecu is seeing an error elsewhere
and refusing to start the pump.