I'm positive I have the right relay. As for voltages, I get very low and unsteady voltage at the blue-yellow wire on the fuel pump (supply). Same goes for the connector under the seat where the black-red wire from the relay becomes the blue-yellow wire going to the pump.
As for the pump motor, it has two wires in the connector. One is power supply, the other is a ground. I checked the pump to see if it grounded itself, and it does not. Only ground is through the connector. I though that might be the issue, so I provided an extra ground with a probe and some heavy gauge wire, but that didn't do anything.
Whatever is going on, it's causing the pump relay to not close, keeping voltage from getting to the pump.
Also, I keep seeing things online about an inertia switch. Do these cars have inertia switches? And if so, where would it be located?