To try and answer all of your post.

The Idle is adjusted by a bolt on the BACK of the throttle-body. When you
back the bolt out it lets more air by-pass the throttle-body and Idle goes
up.

The Auxiliary Air Valve also by-passes the throttle-body when the car is
cold it should be wide open as the car heats up it closes. It should behave
as you describe when cold if you still get the idle to drop by squeezing
when the car is hot...congrats you have found your problem.

When you bypassed the heater core did you maintain coolant flow by the temp
sensor on the heater hose? When the engine is cold the sensor disconnects
the O2 sensor and the result is a richer fuel mixture when the coolant heats
up the temp sensor put the O2 sensor into the CIS computer circuit and the
O2 sensor with the computer controls the fuel mixture.

HTH
Steve
"Lee" > wrote in message
...
> Looks like when I squeeze the hose connected to the Auxiliary Air Valve
> the Idle goes back where it should... so is this a bad Auxiliary Air
> Valve?
>
> -Lee
>
> "Lee" > wrote in message
> ...
>> How do you adjust the idel on this sucker?
>> anyone have any pics or how-to?
>>
>> -Lee
>>
>> "Lee" > wrote in message
>> ...
>>> Got a 86 Cabriolet, by passed the Heater core , now the car only idles
>>> at 3000 rpm.. any suggestions? did I bump anything?
>>>
>>> -Lee
>>>
>>>
>>
>>
>
>