Hyundai Sonata: Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Description

Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in accordance with the air/fuel ratio.

The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled by the ECM via a duty cycle signal. When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.

Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold (Refer to “Intake And Exhaust System” in EM group). 3. Disconnect ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] (Linear type) ItemSpecificationHeater Resistance (?)2.4 ~ 4.0 [20°C(68°F)] ItemSpecificationHeater Resistance (?)Approx. 9.0 [20°C(68°F)] HO2S [Ba ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Master Cylinder Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the air cleaner assembly (A). 3. Disconnect the brake fluid level switch connector (A). 4. Remove the brake fluid from the master cylinder reservoir with a syringe. � ...

Hyundai Sonata LF 2014-2019 Service Manual: DCT (Dual Clutch Transmission) Components and Components Location
Components (1) 1. Dual clutch transmission assembly2. Clutch actuator3. Gear actuator4. Roll rod supprot bracket5. Engine room under cover6. Roll rod bracket7. Dust cover8. Support bracket mounting bolt9. Transmission support bracket Components (2) 1. Clutch actuator2. Fork cover3. Spline ...