why do my van stall and hard to start on 1998 Pontiac Trans Sport

my van is hard to start and stall when gased

Asked by for the 1998 Pontiac Trans Sport
Could be a variety of problems there. There is not a for sure answer for a symptom like that. I would suggest having it diagnosed by a good diagnostic technician. It could be a sensor problem, a problem with the device that controls the idle speed (the idle air control valve), an ignition problem, or a fuel problem.