Kia Soul: Heated Oxygen Sensor (HO2S). Description and Operation - Engine Control System - Engine Control / Fuel SystemKia Soul: Heated Oxygen Sensor (HO2S). Description and Operation

Kia Soul 2014-2019 PS 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.
55555

    Knock Sensor (KS). Knock Sensor (KS).
    Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the engine room under cover. (Re ...

    Heated Oxygen Sensor (HO2S). Specifications
    Specification HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.4 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] A/F Ra ...

    See also:

    Registering your vehicle in a foreign country
    If you plan to register your vehicle in a foreign country, you should confirm that it conforms to the regulations in that country. Even if you successfully register the vehicle in a foreign countr ...

    Tachometer
    The tachometer indicates the approximate number of engine revolutions per minute (rpm). Use the tachometer to select the correct shift points and to prevent lugging and/or over-revving the engi ...

    On-board Refueling Vapor Recovery (ORVR) valve Removal
    1. Turn the ignition switch OFF, and then remove battery (-) cable. 2. Remove the fuel pump. (Refer to Fuel System - "Fuel Pump&qu ...