wiring

I changed the engine from a '92 S-10 to an '88 S-10 Blazer 4WD with a 2.8 V6. So far everything has gone well except i have one plug left over and was possibly wondering if anybody might have any ideas. It's a Square 4 prong plug with blue plastic on it. The wires originate out of the main wire whip behind the distributer. It looks like it might go down to the transfer case or in that area but i cant find anywhere for it to plug into. Any help would be greatly appreciated. :banghead:

You might want to see if there is an empty socket on the transmission.