[tomj76]

The fuel pump is supposed to run for 2-3 seconds when you first turn the key on, before you attempt to start the engine.

The fuel pressure (~40 psi) should be maintained for several minutes after the pump shuts off. If not (intially high but bleads dow quickly), there is a leak. The leak could be the check valve in the pump, an injector, or the fuel pressure regulator, or a hose leak. If it's never high to start, then the pump is bad, or there is a blockage. Logical places to look for blockage are the fuel filter and the inlet screen on the pump.

I think you should resolve the fuel pressure reading you're getting. This could be an indication to the cause of the symptoms that you see.