sensor

Hello, Please help to identify the sensor in the center of photo? Car Regal LS 1997 V6 3800 series 2. Its on the passenger side at the very top of the engine, on opposite side of engine from MAF sensor. Thank you!

So as I was restoring my GN's interior this past week (new ignition, turn signal switches, steering wheel, speakers/radio, gauge cluster, ect.) I found that my fuel gauge on new cluster was pegging out above Full, meaning an open circuit from signal wire. Well I traced it down to the fuel float...