2001 Chrysler Sebring

Engine Performance problem
2001 Chrysler Sebring Automatic 130000 miles

When I leave for work in the mornings, my car runs just fine. As I drive around throughout the day, the car progressively runs rough. When I pull up to a stop light, sometimes the car idals down and sometimes shuts off. I have to restart it more and more the more I drive it during the day. When I come to a stop light and put the car in nutral, it usually stays running but the engin randumly reves up and then idals down. Any Idea what is causing this?
March 20, 2010.

Engine running rough or misfiring can be cause by the following-inspect and test all the following below: 1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.

Mar 21, 2010.