Two types of iat sensors.
Air temp sensor resistance.
Let the engine cool before doing this as you can be severely burned.
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.
Use a multimeter and verify the manufacturer s specifications 220 240 ohms at 70 80 f to test this sensor for proper resistance.
Allow the sensor to cool before further testing.
A faulty sensor can decrease the life of the engine and reduce the efficiency of fuel consumption.
Causes and symptoms of a bad intake air temperature iat sensor.
Never use this to test.
Testing the iat sensor.
The in car temperature sensor icts is an ntc.
You will need a hair drier and ohmmeter for the testing portion of this process.
Verify any suspicions with a visual inspection of the sensor and its connector.
As the temperature increases the resistance is reduced which reduces the voltage at the sensor.
Intake air temperature sensor location.
Automotive air conditioning systems use ntc sensors to monitor air temperature.
The resistance of the temperature sensor changes depending on the intake air temperature.
Temperature and resistance values of an iat sensor.
Different names for the iat sensor.
Testing the iat sensor off the vehicle.
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.
Remove the air intake temperature sensor after first removing the air intake housing.
Take a look at the symptoms and understand why such a problem occurs.
An iat sensor is an important component that is needed while starting up a vehicle s engine.