My 01 Sable keeps throwing a P0452 code which is a Fuel tank pressure sensor problem. I dropped the tank an blew everything clean but I don't know how to remove the sensor. Its plastic and I cant tell if it unscrews or needs to be pried upward with a screw driver. i don't want to break anything as I'm super **** and a perfectionist and could use a tip from someone who has been here?