Welcome to 2CarPros. From your description it sounds like the replacement pump isn't operating. Can you hear the pump turn on? To test if power is getting to the pump you can use terminal G in the under dash connector. If you jumper from that terminal to battery positive it will send power directly to the pump, bypassing the relay and the oil pressure switch. If the engine now starts and runs there is a problem in the power through either the relay or the OP switch. If you hear nothing and it doesn't start then it is likely there is a problem with the pump or the wiring at the pump. That may also be why the old pump stopped, not that the pump was bad but that there is no power to it.
Saturday, July 6th, 2019 AT 11:04 PM