Q: Car starts for 2 seconds then dies. However, sometimes it start runs and drive good.

Ok, so here's what i do know. I've replaced the EGR Valve AND Solenoid. I've replaced the fuel filter, air intake hose, all four spark plugs AND wires. I've tested and confirmed ALL sparks/coils are working correctly. I've Added fuel cleaner, checked hoses for air leaks and cleaned out the IAC valve thoroughly with carb cleaner.

That being said, if i let it sit overnight and try to start it, it will start up for 2 seconds then sputter out and dies. I then can continue to try and start it. it will then turn it over and eventually start up. I'll rev it up and after a few seconds it will run and idle perfectly. I can then drive it all day without the problem occurring again. This morning I tried something new by turning the electrical functions on without starting the car three times before starting. it then started right up with no problems. However it seems almost random when it decides to start or not day by day.

This is driving me crazy and any help would be appreciated!

My car has 151000 miles.
My car has an automatic transmission.