Stalls going forward and and engine light comes on and off and won't pass smog

What is your question?

More likely to stall if car is left idling 5 minutes or more and if gas level is less than a quarter of the tank. Sometimes shifts hard and turns off while moving down the road.

What makes this problem better or worse?

Worse when nearing empty gas tank and if left idling 5 minutes or more

How long has your 1997 Dodge Grand Caravan had this problem?

9 Years