Air Temp Sensor Resistance

The in car temperature sensor icts is an ntc.

Air temp sensor resistance.

Temperature and resistance values of an iat sensor. A faulty sensor can decrease the life of the engine and reduce the efficiency of fuel consumption. As the temperature increases the resistance is reduced which reduces the voltage at the sensor. Take a look at the symptoms and understand why such a problem occurs.

You will need a hair drier and ohmmeter for the testing portion of this process. An iat sensor is an important component that is needed while starting up a vehicle s engine. Two types of iat sensors. The intake air temperature sensor or iat sensor has the core function of monitoring the temperature of the air that is entering the engine of your vehicle.

B checking the iat sensor power and ground circuit. Allow the sensor to cool before further testing. The control unit evaluates these voltage values since they are directly related to the intake air temperature low temperatures result in high voltage values. Verify any suspicions with a visual inspection of the sensor and its connector.

Automotive air conditioning systems use ntc sensors to monitor air temperature. Remove the air intake temperature sensor after first removing the air intake housing. The resistance of the temperature sensor changes depending on the intake air temperature. Intake air temperature sensor location.

Testing the iat sensor off the vehicle. Never use this to test. Use a multimeter and verify the manufacturer s specifications 220 240 ohms at 70 80 f to test this sensor for proper resistance. Testing the iat sensor.

Let the engine cool before doing this as you can be severely burned. Causes and symptoms of a bad intake air temperature iat sensor.