No power to fuel pump. Wiring? Help!

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The initial pressurization of the system has nothing to do with the cas though right since the car isn't running? I'm hearing the relay click on when I turn the ignition switch on, but the pump doesn't respond by turning on to pressurize the system as it should.

The relay is 2 part, it is a relay that clicks on when the key is turned to "run" to tell the ecu to turn on and then after the ecu is on the ecu sends a signal to a differnt trigger wire on the relay and the fuel pump relay section of the relay will then send power to the fuel pump.

And no, the CAS has nothing to do with the initial priming of the fuel system but just because you hear a relay click it doesn't mean its the fuel pump relay. I dont have the pinout for the mpi/fuel pump relay handy but if you could find it you could test if the ecu is sending the signal to the relay to turn on the fuel pump while your turning the cas.