Been down this road before. It really is an easy fix. You need to pull and clean the injectors. There is iron filings from the fuel pump stuck to the magnets in the injector leaning the fuel flow out. Pull them out one at a time and shoot them with high pressure air. Grease the O ring and slip it back in.

These iron filings are super fine. The fuel filter is in the tank before the pump. As the pump wears the iron will end up in the injectors and the fuel pressure and flow will not break the magnetic bond.

Cheers Don.