I pulled this from a thread from 2010,

"assuming the oil temperature sensors are correct...you need to look at the saturated evap temp and compressor temp sensors. if they are wrong, then you could flood back (the compressor won't care), however, you will be putting liquid refrigerant into the oil separator. as the liquid boils off, it pre-cools the oil before going into the oil cooler portion of the condensor. this makes the oil temp colder than the saturated condensing temperature...which is the reason for the diagnostic." -JayGuy