Another Wiring Harness Identification Thread

[bs009]

Hoping someone can help me identify one of the extra wires I have leftover from reinstalling my dashboard.
I have the service manual for the car, but have not been able to identify this one anywhere in there.

This is the terminal:

and this wire leads up towards the center of the dashboard to this box here. Looks like it might be mounted on the firewall.

I also found what appears to be a MAP sensor on the interior of the car by the passenger side somewhere around the glove box. Is this really where this goes or maybe someone left it there for some reason?
I'm assuming it's for the drivetrain and not for the HVAC system.

 

[bs009]

Bump.

I'm really only concerned about the first terminal. I'll just assume this MAP sensor was part of the original ECM system.

 

[Turboelky]

Been a while but looks to be a plug that goes to AC controller. Could be totally wrong.

 

[L92 OLDS]

The Barometric sensor (not MAP -manifold air pressure) senses atmospheric air pressure to help control the computer command control carburetor. Normally it is in the passenger side kick panel and there shouldn't be any vacuum lines connected to it.

Your other plug is a mystery to me without digging into a service manual or better pics. The black wire is ground, the pink is switched ignition....not sure about the blue or yellow wires. Whatever it connects to draws some current...those wire are thick.

 

[Opie Knievel]

What year and specific model is the car?

 

[bs009]

This is on the 82 Grand Prix Brougham (4.1 stock motor) in my sig.
I'll take a look at the wiring diagrams again and see if I can find something else in there relating to those ideas.