Engine Performance problem
1995 Chevy S-10 4 cyl Two Wheel Drive Manual 150000 miles
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when i start my truck it trys to die right after it is started until i press in the gas peddal alittle bit and hold it there for afew seconds then i can let it go and it is fine until it warms up a little bit and then when i put it in gear and press the gas it trys to die on me again so it spitts and sputters and trys to die but if i dont give it time to warm up it will move with out spitting and sputtering until i stop and try to go again.

so what do you think could be wrong with it?
also i have already changed the water pump, the thermestat, and flushed out the radiator. and i changed the oil.

also one more question my engine light stays on and my oil pressure gage only moves when i rev up the engine.

just give me some sort of idea on the first question and then give me another idea with all of the questions and information that i have given you.

please write back as soon as possible because i need to fix my truck or i cant get to work.

1st thing to do is pull the code/s from the computer-than inspect and test the coolant temperature sensor and idle air contol valve/throttle position sensor.