Loose connection - any ideas where it belongs?
 

1994 Bonneville is acting up. RPM's drop suddenly and car seems not to respond to pressing the gas pedal.

I was checking the connection of the crank sensor and noticed a connector that was hanging loose. I have no idea where it should be going.

Its on the front of the engine and comes off the connection on the lower left (AC compressor?). That line splits in 2 and the smaller connection (2 wires) is connected but the other part (3 wires - Red/White, Orange, Brown) is not connected.

Anyone know where this connection should go?

Thanks