1990 Chevy Beretta 6 cyl Front Wheel Drive Automatic 71000 miles

I was leaving the store got into my car it started fine i drove out of the parking lot it hesitated and then just stopped. it starts but will not stay running. it has fuel pressure and i was told it has spark and air so im clueless and what to do. please help.

check the idle air control valve, it may just have a lot of carbon and may just need to be cleaned, or you may have to replace it, check mass airflow sensor too.