Update:

The problem has been getting worse and it’s still intermittent. Sometimes I’ll have to turn the key three times for it to start.

I had the injectors rebuilt by Fuel Injector Specialists (thank you Spartacus for the recommendation). I installed them today and replaced the fuel pressure regulator while I was at it. The crank time seemed to decrease until it warmed up. Then the long crank time returned and I had to turn the key twice for it to start a few times. Then a new problem started – it’s losing power while driving – pedal to the floor and no acceleration for about one to three seconds.

To relieve the fuel pressure before replacing the injectors today, I loosened the fittings to the fuel filter, but nothing happened. There was no pressure. So I think I’m dealing with intermittent fuel pressure loss.

Little Caesar, you had mentioned it could be an ECU fuse on the way out. Somebody else mentioned that to me. I'll try that tomorrow. If that's not it, I’m out of ideas. Any suggestions?

To recap, here’s what I’ve done
- Replaced fuel injectors with OEM rebuilt injectors
- Replaced fuel pressure regulator with OEM
- Checked and cleaned all grounds in the engine compartment and on battery
- Replaced plugs
- Replaced plug wires
- Replaced battery
- Replaced fuel filter
- Replaced air filter
- Replaced PCV valve
- Replaced fuel pump and pump screen with OEM
- Replaced front (AF) and rear O2 sensors
- Cleaned MAF sensor
- Cleaned throttle body
- Disconnected battery to clear memory
- Ohm tested Throttle Control Motor, Throttle Position Sensor and Accelerator Pedal Position Sensor – all 3 passed (the 2002 doesn’t have an Idle Air Control Valve)
- No check engine light and no stored codes
- Ran through 2 cans of seafoam