ff is a system value,the sun sensor doesn't affect the a/c to any detriment ,and after you properly fill the system the code may be gone anyway,or reset the system while in error mode.
Get a set of gauges to check and fill the system and if your not sure what you're doing get help,over filling can do more damage than under filled.Get the good gas not the stuff with the leak stop goop.Find the leak,be careful around the refrigerant,
it be bad!
ohlord
well, after carefully following instructions I got some error codes out of my car
B231, B234,B235,B459, and also that website you gave me , they found out evaporator temperature sensor is malfunctioning, since it shows value 147F, and outside temp. is only 89F, I'll see what I do next I have no idea where this sensor is, thank you all, anyways