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

Hyundai Tucson (LM) 2010-2015 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 Engine Mechanical System - “Intake And Exhaust System”) ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] (Linear type) ItemSpecificationHeater Resistance (x)2.4 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] (Binary type) A/F Ratio (x)Output Voltage(V)RICH0.6 ~ ...

Other information:

Hyundai Tucson (NX4) 2022-2023 Owner's Manual: Integrated Memory System
The Integrated Memory System for the driver’s seat is equipped on some models and allows the driver to store and recall the driver’s seat position. WARNING Never attempt to operate the Integrated Memory System while the vehicle is moving. Information If the battery is disconne ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Call History
Press the key Select [Call History] A list of incoming, outgoing and missed calls is displayed. Call history may not be saved in the call history list in some mobile phones. Calls received with hidden caller ID will not be saved in the call history list. Calling through the call his ...