We replaced the catalytic converter on bank 2 and now my 09 acadia is blowing hot air even with the turning the vents/fan off. I have tried to relearn the blend actuator doors by removing the sensor. It reset my auto temperature but never cycled through. The problem started off on just the passenger side but after trying to recalibrate it the driver side is now blowing super hot too. I can change the vent to defrost or top vents fine when I turn it on but changing the temperature is does not adjust. There is freon in the system.