symptoms of a faulty IAC?

[U ONT 2]

What are they?

 

[JP112_89]

Stalls after start when engine is cold
Stalls after start when engine is hot
Stalling on deceleration
Stalls at idle
Unstable idle
High idle
Low idle

 

[84BuickGNYorkPA]

Follow the steps to adjust the thing and get limitied/to no results.

Chuck