Car in question is a 93 RS lib. Has apexi power fc pro, TD05 and bosch coil conversion.

Currenly helping a mate to get it fixed up and ready for rego.
Last started it after tidying up coil wiring 3 days ago, started fine.
Since then I have pushed the power fc up under the steering column where the ECU lives and cable tied it and the wiring loom up out of the way.

Got a permit to drive it last night. No go.
Few checks later reveal no fuel getting to engine. Topped up with 25 lts fuel, still nothing. Turn key to on position and sounds like pump is priming but still nothing.

I undid the fuel line from the tank and tried, again zilch. Blew compressed air into line going to engine to give pressure on remaining fuel in line and it started on that.

So my big question;

Is it possible for the fuel pump to sound like it is priming but not do a thing?
I recall something about a jet pump in some awd tanks to pump the fuel from one side to the other. Could that be what I am hearing?
I have had a decent look and cant find anything that has been disrupted when tying up the loom and ECU.

Well pissed off that it just stopped when we were ready to go.