How IAT sensor work?
The Intake Air Temperature sensor (IAT) monitors the temperature of the air entering the engine. The engine computer (PCM) needs this information to estimate air density so it can balance air air/fuel mixture. The PCM changes the air/fuel ratio by changing the length (on time) of the injector pulses.
What should the temperature be on the IAT sensor?
Turn on the engine. Check the live data and check the temperature of the IAT sensor. Typically, the temperature readings should be 10 degrees more or less than the vehicle’s ambient temperature, depending on the outside temperature and the temperature of the engine.
What’s the name of the coolant temperature sensor?
Coolant temperature sensors are also known as engine coolant temperature sensors or ECT sensors. The principle working of this sensor involves the use of an electrical resistance which measures the temperature of the coolant.
What does the intake air temperature sensor do?
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. 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.
What’s the difference between IAT and ECT sensor?
We checked the readings of both sensors in the car that has been parked overnight (the engine is cold) using the Torque app. As you can see in the photo, the IAT sensor measures 32°F inside the intake, while the ECT sensor measures 30.2°F. The small difference is because the air warms up faster in the morning than the metal engine.
Turn on the engine. Check the live data and check the temperature of the IAT sensor. Typically, the temperature readings should be 10 degrees more or less than the vehicle’s ambient temperature, depending on the outside temperature and the temperature of the engine.
Coolant temperature sensors are also known as engine coolant temperature sensors or ECT sensors. The principle working of this sensor involves the use of an electrical resistance which measures the temperature of the coolant.
What is the function of an intake air temperature sensor?
Functions of an IAT Sensor. An intake air temperature sensor is an essential component of an engine, which ensures that the vehicle starts smoothly, and that the fuel-to-air ratio is maintained at appropriate levels, for effective combustion of the fuel when the engine is cold. In some vehicles, it is used to delay the release
How to fix a bad intake air temperature ( IAT )?
If this does not happen, it means that the internal computer is to blame, and that it is not producing the voltage that the IAT sensor needs to function. To fix a faulty intake air temperature sensor, remove all carbon and oil accumulation. If this does not fix the problem, replacing the unit is the best option. Like it? Share it!