Sorry guys, I forgot to mention it is a 2.1 L engined van.  It idles fine when warmed up for a few minutes, but won't keep idleing when I start it cold.  
I had one response, suggesting if I change the idle valve (buzzer) it might do better, or maybe it is the little black box behind the right tail light, Idle Control Unit.
Are you all in agreement with those?
Thanks in advance to all who can tell.
Zoltan