Fuel pressure issue with a 2007 Chevrolet Colorado vortec 2900

What is your question?

I have a 2007 Chevrolet Colorado with the Vortec 2900. Recently it’s become hard to start. After diagnosing it I found that the fuel pressure was 32psi at idle and 25psi with key off. Due to these findings I replaced the fuel pump and connector with a precision pump. Once installed I rechecked the pressure and still the same. I then checked that the fuel line wasn’t clogged. It was clear from the tank to the shrader test valve on the rail. There’s no fuel filter or pressure regulator on this year of vehicle so I am unsure of what to do next. No trouble codes, either current or historic. Any ideas or help would be appreciated

What makes this problem better or worse?

Nothing

How long has your 2007 Chevrolet Colorado had this problem?

Several months