sensor help

hey ive gotta 89 GT turbo probe
and theres a wire with a plug right between the valve cover and i think its the temp gauge, tha wire goes into the main harness and i kant find tha male plug for it, if anyone could tell me where it plugs into to, would be helpfull,if a pic was posted showing would be better, but ya,kinda need to know where it plugs into as i dont think tha temp sensor is working correctly cuz of it:(:( if im wrong plz say so and correct me