there's a brown wire with yellow connector that hangs right above the
thermostat housing that i believe is called a "Idle Stabilizer Control valve
connection" by bently.
unfortunately while i was troubleshooting i disconnected it and the right
side connector pulled clear off of whatever it was connected to.

i've pulled apart the group of wires that it seemed to be connected to and
couldn't find any trace of this thing.

i'm pretty sure that it somehow connects to the idle computer, though i'm
not sure what the other side connects to.

on that note, the van idles much better with it disconnected.  it seems to
hunt up and down otherwise.

when i disconnected the idle computer i could hear something rattling around
but i haven't taken it apart yet to see if it's something i can solder back
on.

anyone know about this mystery wire?

Thanks  again,
Steve - 86 GL