HELP!!!! Please and thanks
 

there is a plug just behind the oil dip stick that is unplugged it has 2-3 wires going to it and i dont know what its for or what it does. help. also my car seems to go through a heck of alot of coolant and not sure why, my heater core does not seem to be the problem as i dont see or feel any wet spots behind the dash where its located and im not burning it and theres no leaks that i can find. ill fill it and bleed the system but then 2 days of driving later its empty.

PLEASE any advice, ideas, or tips would be much appreciated.

http://i1187.photobucket.com/albums/...4/IMAG0047.jpg

http://i1187.photobucket.com/albums/.../IMAG00471.jpg