Installed new fuel pump no fuel getting to engine oil has fuel in it.

if it is a common rail diesel , check the fuel control module ( run fault codes)
if the pump has steel lines to each injector
bleed the air from the pump and then loosen of each line at each injector
turn the engine over until you see drips of fuel from the injector line nut
tighten each nut and it will start
indicates air in the injector lines

Engine computer supplies voltage through oil pressure switch. No oil pressure no power to fuel pump. Turn key on you should get a 12volt shot to fuel pump to prime system. After that the oil pressure switch has to be good to continue to hive 12volts to pump

Can you give some more information? Did you do the tune up yourself? What all was in the tune up - just what you listed? What about plugs and wires? Do you have access to get some tools? How was the car before all of this? any check engine lights

What kind of engine is it? As far as the pistons go you should have used motor oil or the like on the rings when you installed them. If you're talking fuel and it's a fuel injected engine, you shouldn't have to prime it as the fuel pump pressurizes the system and shouldn't need any other source.

It is very important to look at the four pin connector that plugs onto fuel tank sending unit the hot wire that runs the pump gets loose and burn the connector making intermittent connection they make a replacement plug for this problem also check the connections on the inside i have those fail once.

If the pump continued to run after shutting off the car you fuel pump relay was probably staying latched. I would replace the relay as well based on your info. Along with the pump the fuel filter should be replaced too and fuel pressure should be checked. Make sure your ground is good also.

Check fuel pressure. Have you replaced the fuel filter on schedule? Verify that the fuel pump is getting power. Power goes through an in-line fuse, then the fuel pump relay or the oil pressure sensor. (The relay bypasses the oil pressure sensor while the engine starts, but fuel pump power goes through the sensor during normal run operation. If you lose oil pressure, the fuel pump is shut off to protect the engine.) On four-cylinder models, the fuse is in the fuse block (E PUMP 10)
The fuel injectors are connected to the ECM fuse on one side and straight to the engine computer on the other side. Check the connectors and wiring, especially at the injector.

if computer command truck with an ECM replace the engine's oil pressure sensor. It has 3 wires to it and one runs to the fuel pump to prime upon starting the engine. Once oil pressure is acheived the computer switches that senors wires circuit off and turns on the fuel pump relay to take over the fuel pumps operations till you shut the engine off

Oil pressure switch puts power to the pump after it is started.

Pumps also tend to loose their ground with age. I often splice in a new ground at the pump to eliminate that problem area.

Need some votes, thanks

the oil pressure switch conjoins to the fuel pump feed upon starting the engine. once the engine gets to normal oil pressure the computer will shut the feed off from the oil switch and turns the relay on to take over till you shut the engine off. If the fuel pump is good try this test. Turn the key to the on position & do not start the engine. You will hear the fuel pump running if the oil switch is good