Experts, what is this connector?

[Jerryl]

Does anyone know what this unused brown connector in the picture was supposed to be used for? Water injection trigger?
The three prong black connector is for the MAP sensor. Just curious.

Nothing showed up in a search and I know this question must have been asked before.

 

[FlaBoy]

They both serve the same function... I am assuming you have an analog dash car? Those used the three-post weather pack connector in your picture to hook up to the MAP and send your signal to the stock boost gauge. If you had a Digital Dash car (like mine) it uses the brown connector. The digital dash cars have no boost gauge, just a cheesy 2-stage "boost lamp". One yellow light turns on at a little boost, the second (red) light turns on at a lot boost. So that brown connector hooks up to a 2-stage boost sensing switch and determines when those lights come on. The only reason I know this is because a) I have a digital dash car and b) i jsut finished installing Caspers electronic fan conversion harness, which uses the un-used connector and wire to get the signal from the ecm to turn on the fans. Anyways, hoped I helped!

 

[Jerryl]

Makes sense.
Was hoping to use it for something else, not sure what, but just thinking.
Thanks!

Edit:
I remember seeing it earler before the post in one of the files from Caspers.

 

[FlaBoy]

If you need a wire going from the hood to under the dash, its useful. IT goes from your brown connector to an unused pin in on of the under dash wiring harness connections (the big white one under the glovebox, near the ECM) The casper's electric fan conversion harness uses that wire to connect the fan relay to the ecm, but I'm sure there are a milllion other uses.