Q: unusual stalling on 1996 Oldsmobile Achieva

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
my oldamobile achieva usually runs fine but i have problems after the car has gotten up to temperature. After you park it and shut it off, when you go to start it again it idles very rough and at a low rpm. when you give it a little throttle it dies out. Why is this?
(1) Answer
could be one of many things ( idle air control motor, air charged temp sensor, mass air sensor or intake manifold leaking ) better off having a tech diagnose this than changing parts that are still good