What is this plug for?

[Turbo Negro]

Poking around under the hood today, replacing wire loom & found this plug hanging down from in front of the intake. Can anyone tell me what it is? Has 3 wires (Orange, Orange w/ Black Stripe, & White).

 

[williamsGN]

Oil pressure switch, you should see a plug with three prongs sticking out above the oil pump assembly.