UPDATE MAY 21, Sunday AM
I tested the fuel pressure according to LCE's site:
Disconnect the vacuum hose from the fuel pressure regulator and plug it, you should see 38 – 44 psi
Reconnect the vacuum hose to the fuel pressure regulator. Measure the fuel pressure at idling you should see 33 – 38 psi.
Stop the engine. Check that the fuel pressure remains above 21 psi for 5 minutes after the engine is turned off.
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check the following parts:
• Fuel hoses and connections
• Fuel pump
• Fuel filter
• Fuel pressure regulator
And it passed all tests.