>>
>> The problem is that when the van is cold (overnight) and you start it it
>> will stall and not idle. It feels like the engine is not being fuel
>> enriched. I changed the coolant temperature sensor and checked the
>> connections to the computer. Didn't help. The idle stabilizer appears to
>> be working. It hums and the van runs and idles fine once it warms up. A
>> friend thought it could be the computer and lent me one that we knew was
>> good. Still didn't fix the problem. Finally I figured that it had to be
>> the idle stabilizer control unit. We replaced it with a known good
>> control unit. I have checked all the wiring and I have good connections
>> everywhere. I don't know what else there is to check. Any suggestions?

Greg, it sounds like a problem with the cold start injector.  Make sure the
connections are good, you can even pull it out, and hold it into a clean
glass jar.  When you try to start it cold, it suold squirt a bit of raw gas
into the system.

Good Luck.