why does my olds loose power to the fuel pump and drivers seat and windows

On the driver side kick panel under the carpet there is a ground junction that needs to be taken apart and cleaned and that should cure all your problems. There's about 6 or 7 black wires going into the ground junction which is about 3 inches long inch and a half tall and about a quarter inch wide you'll have to pull apart and clean the connections and that should fix your problem.