I have a 1994 GLE Volvo. When I am idling at a traffic light or waiting in a drive through my car hesitates and wants to stall out. I put the car in neutral and give it gas to keep it running. Seems like it is worse in warm weather. Has anyone had this problem before could it be my idle air control valve? I have put a new gas filter in, 2 new fuel pumps and have used fuel injection cleaner and I am still experiencing the problem. The problem happens randomly so it is hard for the mechanic to experience it sometimes when they are trying to diagnosis it. Any insight would be appreciated..

 

Mass Airflow Sensor...i had this same problem myself.