What is it?

[Speedwagon]

On the airbox of an '87 2.3FI, there is an electrical device. It is connected to the small(return?) tube from the intake, and it has a hole into the airbox. What is this?

And is this engine MAP based, not MAF? I see no signs of a MAF on this engine.

 

[Ranger44]

Yup, MAP.

 

[Kenneth S]

It's the idle air control (IAC).

 

[Speedwagon]

Ok, that's what I was thinking, just wanted to make sure.