My 92 Acura Integra Engine Stalls

I got a 1992 acura integra LS with 202,000 miles and the Engine Stalls I start the car it start up normal but when I drive the car to the store and the car is warm I go inside to the store for about 5min come out start the car then the Engine Stalls for about 20 sec and then I hit the gas so it can stop stalls when I hit the gas its back to normal it been doing this to me for about 3 years I clean the ICV and replace PCV and it still doing it can you help me tell me what I can do to make it stop Stalls thank you