Received my new 17mm master cylinder today but the question is why is there only a place for one electical connection, the one on the car now has 2 and 2 different wire to connect. What exactly does this do? What do i do with the wires.

Help, I'm sooo close to driving.

Pic of old MC

They just hook to the warning light on the dash, so the light flashes at you when you press on the pedal when you have no brakes. This is assuming the fact that you'll not actually be stopping isn't telling you first...IMHO, a useless appendage, and I'd not let the lack of said wiring stand in the way of not driving the car.

You have two wires. Just hook the non-solid brown one to the single connector. I think it is brown with a black stripe??? Anywho, on the version with two connections, one is ground. On the version with one connection the grounding is done through the case of the MC itself.

Thank You Shannon.

Brakes going back together tonight.