Fuel pump not priming

[silkoop]

I need to figure out what each wire does on the fuel pump and fuel pump harness. Mind u its a 94 180sx. Im not getting signal to the pump so I have to straight wire fuel pump. My fuel level on dash does work.
Main harness colors Black, Black/White, Black/Yellow, Red, Green.
Fuel pump harness Black, White/Purple, Yellow, Yellow/Blue, Blue/Red

[compactfean]

I would diagnose the real problem...usually eccs related, maybe.ecu but not hard to figure out But if you absolutely need to hard wire its black/yellow for fuel pump power.

[silkoop]

Its straight wired right now. The issue is not fuse related. I check with a volt meter there are 12v going to the power wire and 5v going to Im assuming the signal wire. Im not sure which wire would be signal on the fuel pump