92' ranger w/ 94' 2.3 MFI 4cyl, Diagnosis help please!!!?

It is very hard to start when motor is cool, when it does it sputters then dies. then it starts back up with one crank and idles about 300 rpms until you give it some gas, after starting you go to drive then it will sputter a few times and be fine for as long as the motor is still hot or warm. If it has been ran in... show more It is very hard to start when motor is cool, when it does it sputters then dies. then it starts back up with one crank and idles about 300 rpms until you give it some gas, after starting you go to drive then it will sputter a few times and be fine for as long as the motor is still hot or warm. If it has been ran in the past 5 hours or so it will fire right up no problem.

Things to Note: Does not smoke upon starting, The following has been replaced in the last six months: Throttle Position sensor, Idle Air Control valve, Mass Air Flow sensor, O2 sensor, Coolant Temp. sensor, Air Charge Temperature sensor, Electronic Control Module, Fuel Pump, Fuel Filter, Plugs N' Wires.

Every sensor that controls fuel mixter is NEW. I was thinking fuel pressure regulator maybe, seems like its loosing fuel pressure as it sits or maybe getting air in the line some how, have not been able to find ne fuel leaks,

If you have knowledge of these small electronically controlled motors please pass some on, thanks
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