Air Temp Sensor Resistance

Use a multimeter and verify the manufacturer s specifications 220 240 ohms at 70 80 f to test this sensor for proper resistance.

Air temp sensor resistance.

B checking the iat sensor power and ground circuit. Different names for the iat sensor. Temperature and resistance values of an iat sensor. Testing the iat sensor.

The resistance of the temperature sensor changes depending on the intake air temperature. Two types of iat sensors. The control unit evaluates these voltage values since they are directly related to the intake air temperature low temperatures result in high voltage values. Never use this to test.

Let the engine cool before doing this as you can be severely burned. Allow the sensor to cool before further testing. Automotive air conditioning systems use ntc sensors to monitor air temperature. Verify any suspicions with a visual inspection of the sensor and its connector.

A checking iat sensor resistance. An iat sensor is an important component that is needed while starting up a vehicle s engine. As the temperature increases the resistance is reduced which reduces the voltage at the sensor. This information is very useful for the engine control unit or ecu for many functions and calculations such as calculating the air density for effective ignition timing and fuel efficiency.

A faulty sensor can decrease the life of the engine and reduce the efficiency of fuel consumption. Testing the iat sensor off the vehicle. You will need a hair drier and ohmmeter for the testing portion of this process. 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.

Causes and symptoms of a bad intake air temperature iat sensor. The in car temperature sensor icts is an ntc.