Why is my fuel pump not working on my 94 Buick Century special?

I replaced my heater core which was my first time doing this. I know I didn't need to do this but I disassembled the dash. There is one wiring harness under the steering wheel that I can't find where it goes and I'm thinking it might power the fuel pump. It was running before I started but now it will not start. It turns over and has spark to the plugs. I pulled and checked all fuses just to be safe. I listened for the pump to hum when I turned the key but nothing. If it was working fine before I started does anyone know if the harness goes to the fuel pump and, if so, where does it go? If not, any suggestions? Thanks.