I am doing some rewiring and have replaced some bad connectors. Where does the little sensor connect to that is on top the power steering pump?

 

That should be the blue/yellow wire in the engine harness on the driver's side of the engine. That wire goes to the PCM pin 1N and also the gauge cluster CPU/Speedometer.

I believe the sensor is a pressure switch and a part of the speed sensing power steering system.

 

Update: The switch is used to increase the idle RPM's when a hydraulic load is imposed on the power steering pump at engine idle conditions.