I got the new evap sensor and worked on installing it. Found a rubber plug that fit a 1-3/4" hole. So I used a holesaw and carefully opened it up. Was able to pry the old sensor out. Next I made a loop with some string and cinched it around the connector up top. Was able to reach the topside just by removing the glovebox. After pushing the grommet and connector thru the hole I was able to fish the assembly out the hole I made. Move the string over to the new connector end so I could pull it back up and thru the top hole. After a fair bit of maneuvering I was able to get the sensor back into the evaporator. This seem to have solved the freezing up problem and the temperature now reads correctly.