oil pressure gauge follow up.

["Boothroyd, Frank" <Frank.Boothroyd@northatlantic.nf.ca>]

Okay, okay... so it was a dumb question.  And actually I did know the oil
pressure gauge is mechanical - I pulled the hose off myself when taking the
dash apart. I just kinda... well... forgot.

So what is the "oil pressure switch" doing on my engine?  And why are there
three wires hanging near it?  Should one of them be connected to it?

(Sorry 'bout the dumb question - wish I could tell you it'll never happen
again!)
Frank.