After getting my car back from the mechanic, I noticed this purple plug undone in the C8 area of 4th Gen F-Body Visual Reference-Front End Devices/Sensors

What is it and where should it be plugged in? Current electrical symptoms are no fog lights and no power to the A/C compressor. Don't know if these are related but I'd like to plug this thing back in anyhow.

 

AIR pump?

 

MAF sensor has a 3-pin connector with a white cap on the connector. Check this photo, courtesy of Shoebox:

http://shbox.com/1/maf.jpg

 

I have the MAF installed and plugged in, I'll try to chase down the AIR pump diagram and see if that's what's unplugged.

 

I looked at my AIR pump (sitting in the spare parts pile in the garage) and it has a 3-pin connector as well. I have a bundle of unused connectors on the front of the drivers side head and the 3-pin connector with the purple gasket is in the bundle. I have deleted the AIR pump, the MAF sensor and the ICModule, so it could be the connector for the AIR pump.

 

Likely the AIR pump.

 

That's air pump.