
The principle of the intake air temperature sensor is: The intake air temperature sensor is a negative temperature coefficient thermistor. When the temperature rises, the resistance decreases, and when the temperature drops, the resistance increases. As the resistance in the circuit changes, the voltage changes accordingly, generating different voltage signals to complete the automatic operation of the control system. Symptoms of intake air temperature sensor failure: 1. The engine fault light stays on when the ignition is in the ON position; 2. A small amount of black smoke appears when gently pressing the throttle while stationary, and a large amount of black smoke appears during rapid acceleration; 3. The engine lacks power; 4. Fault code P01D6. The intake air temperature sensor primarily corrects the fuel injection quantity of the engine and plays a very important role in the automotive engine system.


