All brand new spark plugs but the car still won't start?

Hello,

It sounds like you might have a faulty fuel pressure regulator. When a regulator fails it can either provide no/low fuel of too much fuel.
Check the fuel pressure. There is a port on the fuel rail that you can use to test the pressure.
You will need to use a fuel pressure test tool, which you can rent from any of your local parts stores.
This vehicle should have 60-66 PSI of fuel pressure with the key On and engine Off.

Here is a helpful video:

https://youtu.be/aITQclp7zIE

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

See below for the diagnostics for the fuel pressure regulator.

I have attached diagrams for your reference.

Please let me know of any questions.

Thank you.