If you have power to the pump and it doesn't engage, either you got another bad pump or there is no ground to complete the circuit.
Make sure none of the connections in the plug are damaged or corroded. If they look good, you need to check the ground to make sure it isn't damaged or corroded.
I attached a portion of the wiring schematic below which shows ground location. Take a look at it and check.
Let me know what you find.
Saturday, August 1st, 2020 AT 11:10 PM