Hot start problems- 5kcstq

["TM" <mizutanit@mindspring.com>]

Hi listers,
My car runs flawlessly on cold starts, but recently, I've had some
serious problems with hot starts. The starter fires and the engine
cranks up, but it seems like it can't maintain any idle and the
engine dies after a few seconds, trying to drop the idle to 500 rpm,
which isn't going to happen. Funny thing is, if I can get it fired
up and moving, the problem goes away. Last night I had a bit of a
scare because it took 5 tries to get the car going. Then, later on,
after it was parked for a while (couple hours), it started and ran
fine.

My guess? Multi-function temp switch, or some other similar device.
Can someone please help in diagnosing this problem? Greatly appreciated,
as I will be undertaking replacement of my dash lights and A/C programmer
today and don't need any other problems.

Taka Mizutani
'86 5kcstq