As it turned out, the only problem I had was the low fuel module bulb. I did not know that the bulb in the socket served any purpose for the low fuel module.
With the ignition switch on and the Low Fuel light on, I pulled the bulb out of the socket and the ligt went out. I put the bulb back in the socket and the light came on. The bulb does not illuminate, but acts like a connection, I guess.
Can someone explain why GM used a bulb in this module? Or is this just look like a bulb and is not or what?