KIA Niro: Intake Air Temperature Sensor (IATS)
Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Engine Control / Fuel System / Engine Control System / Intake Air Temperature Sensor (IATS)
Specification
Description
Mounted inside the Manifold Absolute Pressure Sensor, Intake Air Temperature
Sensor (IATS) detects
the intake air temperature.
To precisely calculate the amount of air, correction of the air temperature is
required as the air density
varies with the temperature. So the ECM uses not only MAPS signal but also IATS
signal. This sensor
has a Negative Temperature Coefficient (NTC) thermistor with resistance in
reverse proportion to the
temperature.
Circuit Diagram
Harness Connector
Intake Air Temperature Sensor (IATS) Repair procedures
Inspection
- Switch "OFF" the ignition.
- Disconnect the IATS connector.
- Measure resistance between the IATS terminals 3 and 4.
- Check that the resistance is within the specification.
Removal
- Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
- Disconnect the manifold absolute pressure sensor connector (A).
- Remove the sensor (B) after loosening the mounting bolt from the intake manifold.
Manifold absolute pressure sensor mounting bolt: 9.8 - 11.8 N*m (1.0 - 1.2 kgf*m, 7.2 - 8.7 lb*ft)
Installation
Warning
- Install the component to the specified torque.
- Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
- Insert the sensor in the installation hole and be careful not to damage it
- Install in the reverse order of removal.
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Engine Coolant Temperature Sensor (ECTS)
Specification
Description
Located in the engine coolant passage of the cylinder head, Engine Coolant
Temperature Sensor
(ECTS) detects the engine coolant temperature. The ECTS uses a thermistor with
resistance in
proportion to the tempera
Crankshaft Position Sensor (CKPS)
Specification
Crankshaft Position Sensor (CKPS) Description and operation
Description
Crankshaft Position Sensor (CKPS) is one of the most important sensors of the
engine control system
that detects the crankshaft position. Lack of CKPS sig
Camshaft Position Sensor (CMPS)
Description
Camshaft Position Sensor (CMPS) is a hall sensor, which detects the camshaft
position by using a hall
element.
It is related with Crankshaft Position Sensor (CKPS) and detects the piston
position of each cylinder
which cannot be
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