In the diagrams down below I have included the instructions for how to test the fuel pressure on your vehicle. You should be able to rent a fuel pressure tester from your local auto parts store, like AutoZone for a refundable deposit. Please go through this guide and get back to us with how everything turns out.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.