Kia Optima: Intake Air Temperature Sensor (IATS). Description and OperationTo calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature. So the ECM uses not only MAPS signal but also IATS signal. This sensor has a Negative Temperature Coefficient (NTC) Thermister and it's resistance changes in reverse proportion to the temperature.

Installation
Intake Air Temperature Sensor (IATS). SpecificationsCleaning the Upholstery and Interior Trim
Vinyl
Remove dust and loose dirt from vinyl with a whisk broom or vacuum cleaner. Clean
vinyl surfaces with a vinyl cleaner.
Fabric
Remove dust and loose dirt from fabric with a whisk broom or va ...
Temperature control
The temperature control knob allows you to control the temperature of the air
flowing from the ventilation system. To change the air temperature in the passenger
compartment, turn the knob to th ...
Releasing the parking brake
Foot type
To release the parking brake, depress the parking brake pedal a second time while
applying the foot brake. The pedal will automatically extend to the fully released
position.
Hand ...