Home Auto Repair How to Test an Air Intake Temperature Sensor

How to Test an Air Intake Temperature Sensor


Proper functioning of you car’s air intake temperature sensor can help you avoid costly repairs to your engine and other components. Sensors are simple to test at home to ensure they are working correctly.

Step 1

Understand the purpose of the air intake temperature sensor. The sensor keeps tabs on the temperature of the air circulating through the exhaust system. It is located in the air cleaner housing or duct and helps the car’s computer regulate the exhaust-gas recirculation.

Step 2

Know when to test the sensor. The “check engine” or “service engine” light will come on as is your first indicator that something is wrong. At this point, it could be an actual problem or a malfunctioning sensor.