Hyundai Sonata: Emission Control System / Exhaust Emission Control System

Fuel Tank Air Filter Repair procedures
Replacement 1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Lift the vehicle. 3. Remove the rear-left wheel & tire and house cover. 4. Disconnec ...

Description and Operation
Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components. Modifications to the combustion chamber, int ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Lumber Support Units Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the front seat assembly. (Refer to Body - "Front Seat Assembly") 3. Remove the seat back. (Refer to Body - "Front Seat Back Cover") 4. Disconnect the lumbar support motor connector (A). 5. Remove the lumbar supp ...

Hyundai Sonata LF 2014-2019 Service Manual: Intake Air Temperature Sensor (IATS) Description and Operation
Description Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure Sensor and detects the intake air temperature. To calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature. So the ECM ...

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