Help would be greatly appreciated!

Hi, I have an 2000 Pontiac Grand Prix SE 3.1L V6 and I've discovered someone has tinkered with it and now there is a wire disconnected, and for the life of me I can not find where it plugs back into. It is located coming off the group of wires that go to the alternator and a couple other components. I have taken the alternator, power steering pump, coils, manifold and injection cover off and still can not find where this plugs into. The car won't crank now unless I hold the throttle about half way but will die if I let off and will not accelerate more past half throttle. I am posting a photo of this wire connector in hopes someone may can give me a tip of where it connects. Thank you!

http://i1087.photobucket.com/albums/j472/nomadicrah/11150607_1011868088831336_3387086165033924438_n_zp sx4odrjnq.jpg