Hyundai Ioniq (AE): Engine Control System / Heated Oxygen Sensor (HO2S). Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & Repair 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.

    Removal 1.Turn the ignition switch OFF and disconnect the battery negative (-) cable.2.Remove the intake manifold. (Refer to Engine Mechanical System - "Intake Manifold")3.

    SpecificationHO2S [Bank 1 / Sensor 1] Item Specification Heater Resistance (Ω)2.4 - 4.0 [20°C (68°F)]HO2S [Bank 1 / Sensor 2] (Binary Type) A/F Ratio (λ) Output Voltage (V) RICH0.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Auto Defoging Actuator. Specifications

    S

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Description and operation

    DescriptionIn ordinary cars, the mechanical water pump mounted on the engine for heating purposes is activated to circulate the cooling water, but in hybrid cars, AEWP is used to circulate the cooling water when the engine is not operating. Classification System Cooling water used

    Categories

     
    Copyright © 2026 www.hioniqae.com - 0.0134