What does an IAT sensor do on a car?
The IAT sensor measures the air temperature that is going into your intake manifold. The colder the air, the more dense it is, and the more fuel you need to keep your engine working smoothly. Almost all IATs are simple two wire devices that measure resistance.
How are MAF sensors different from IAT sensors?
MAF is an acronym for “mass air flow.” Unlike IAT sensors, MAF sensors measure air volume with temperature at once. Remember, the MAP sensor above measured intake manifold pressure / vacuum and then estimated air volume with computer software. An MAF actually measures real air volume so that the computer doesn’t need to guess what it might be.
How does an IAT work in an ECU?
The colder the air, the more dense it is, and the more fuel you need to keep your engine working smoothly. Almost all IATs are simple two wire devices that measure resistance. As the air temperature changes, the resistance in the sensor changes and the ECU knows to change the air/fuel ratio based on this.
What does IAT stand for in auto category?
IAT is an acronym for “intake air temperature.” The IAT sensor measures the air temperature that is going into your intake manifold. The colder the air, the more dense it is, and the more fuel you need to keep your engine working smoothly. Almost all IATs are simple two wire devices that measure resistance.
Where is the IAT sensor located on a car?
Location of the IAT Sensor. A standalone IAT sensor is located between the air intake box and the throttle body in the air intake passage of most vehicles. The sensor may be threaded onto the inlet manifold, in which case, it is called a Manifold Air Temperature (MAT) sensor.
What does high voltage on IAT sensor mean?
This means that the IAT sensor is reporting a temperature of 300 °F (149 °C). P0113: Intake Air Temperature (IAT) Sensor Circuit High Voltage. This means that the IAT sensor is reporting a temperature of -38 °F (-39 °C). Bad gas mileage. Black smoke coming out of the tailpipe.
What are the symptoms of an IAT sensor malfunction?
The most obvious symptom will be the check engine light (CEL) lit nice and bright on your instrument cluster. The second will be an IAT sensor malfunction diagnostic trouble code (DTC) stored in the PCM memory. Here are some of the specific symptoms you’ll see/have: P0112: Intake Air Temperature (IAT) Sensor Circuit Low Voltage.
How to remove the IAT sensor from an air cleaner?
To remove the IAT sensor, detach the wiring harness connector from it . . . To install: Wipe down the air cleaner outlet tube and IAT sensor mounting boss to clean the sensor area of all dirt and grime. Install the sensor into the air cleaner outlet tube securely. Attach the wiring harness connector to the IAT sensor.