Look friend I would tell you that the problem reveals that the engine should be carbonized the combustion camera should be well reduced or the temperature sensor marks about 60 degrees of temperature cheating the motor ECU and that is why the injectors send more gasoline and thus rehearsal and your board marks another temperature the temperature sensor and the board are two sensors that work independently because the temperature sensor has contact with the air. You make a bad change of refrigerant is why when you change the thermostat, this will be the same will be a purged to the refrigerant system as soon as this is seen in the scanner and if it follows then it is unveiled that the combustion chamber is carbonized, weakening spark resistance in the cables, lack of understanding etc.