engine stalls on 1993 Chevrolet Cavalier

the engine runs and idles very smoothe, after the car is warmed up 45 minutes approximately and you pullup to a stop sign the transmission doesnt disengauge and the engine dies even though the car is an automatic. if you let the car sit 15 minutes and cool down you can drive for a short while until it warms up again

Asked by for the 1993 Chevrolet Cavalier
This could be so many things, best to have a good Tech with Experience look at this.