LinkAtom Player Posted April 29 Report Share Posted April 29 hello.. need help with aircond evaporation sensor calibration on link g4+ .. i'm using denso japan sensor. thank you Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 29 Report Share Posted April 29 I dont think I have even seen any calibration data for one, it is pretty uncommon to have them connected directly to the ecu, usually it is connected to the AC computer or BCM and transmitted over CAN so we dont need need a calibration. Quote Link to comment Share on other sites More sharing options...
Pete_89t2 Posted April 29 Report Share Posted April 29 I've never seen any automotive A/C system that uses a sensor for "A/C evaporation" that would require a calibration curve. What kind of car is this on? Typically, automotive A/C systems will use a thermal switch that is in physical contact with the evaporator core to detect when the evaporator core temp is getting just below the freezing point (0*C or 32*F) - at that point the switch opens to cycle the A/C compressor clutch off temporarily, which prevents condensation from freezing to the evaporator core and blocking airflow thru it. Once the core temp is above freezing again, the switch closes, and the compressor clutch engages again. Quote Link to comment Share on other sites More sharing options...
Laminar Posted April 29 Report Share Posted April 29 My 2011 F-150 has a thermocouple shoved into the evap core fins that feeds an actual temperature to the ECU so that it can kill the compressor when it needs to. Quote Link to comment Share on other sites More sharing options...
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