Fuel pump not working fuse block shows no voltage

If you take a look at the wiring diagram, are you saying that you do not have voltage on the fuel pump check connector in the junction block? If that is what you are checking then you have an issue with the fuel pump relay, ECU fuse, engine control relay or the fusible link. Basically we need to start checking for power on each of these until we find where we have power. Then the item just downstream of that is the issue.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

So everything is working or you still have no fuel pressure?

Okay. We need to get the actual fuel pressure when the key is turned on and then when it is running and you feel this cutting out. I would just tape it to the windshield so you can sit in the car and see the pressure.

I doubt it is the pump but we need to see what the pressure is to determine if it is even related to the fuel pressure.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Sorry for the confusion. If the vehicle starts, we need to monitor the pressure with the key on and then with it running. Take a look at the attachments and let me know what the actual fuel pressure is and we can go from there.

Is there a chance that this was PSI and not kPa? Or was there a scale on the gauge? If this was PSI then it will make sense that the pump is not building pressure at key on. This could be due to a leaking injector.

To test this, do a couple key cycles and then pull the plugs and see if they smell like fuel. If they are fouled, this will be another indicator of a leaking injector.

This would also line up with what the other mechanic mentioned that there was too much fuel.

Let me know and we can take next step. Thanks

You have a vacuum operated fuel pressure regulator. That means if you disconnect the hose while the engine is running the pressure should jump to about 50 PSI while it is running. If it does, then your regulator is good.

However, your pressure is low. That means we have one of three main things.

1. Weak fuel pump - you already replaced this so let's assume that is ok since you changed it and it did not change the issue. Correct?
2. A clogged fuel filter preventing enough fuel from being delivered to the rail - unfortunate thing is the filter on your vehicle is part of the pump so as long as you changed the entire assembly and not just the pump portion, then that is not the issue either. (You would know this if you had to move parts over from the old pump to the new one, or did you just take the entire fuel pump out and put the new one in? See attachment 4, the three main parts of the pump assembly are circled)
3. Leaking injectors not allowing the pump to build pressure - this is where we need to cycle the key a few times and then check plugs for fuel.

Let me know what you think. Thanks

Sounds great. I imagine your pressure will be improved. If still not up to where it should be we may have other injectors leaking. Just make sure you keep track of if the vacuum is on or off. It will change the pressure. I attached the reading and vacuum line location of the regulator again in case you need it. Thanks

I attached the process on how to measure the fuel pressure. There is a tool that is needed that splices into the fuel supply line. Basically you unbolt the line and put this inline. However, they are correct that there is no easy way to do it. How did you get the pressure readings that you provided prior?