Hyundai Veloster: Heated Oxygen Sensor (HO2S). Description and Operation

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 ...

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 ...

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General Safety Information and Caution
Precautions General Precautions Please read the following precautions carefully before performing the airbag system service. Observe the instructions described in this manual, ...

Rear combination light bulb replacement
(1) Stop and tail light (2) Back-up light (3) Rear turn signal light (4) Tail light Outside 1. Open the tailgate. 2. Loosen the outside light assembly retaining screws with a cross-tip screw ...

Fuel Pressure Control Valve. Specifications
Specification Item Specification Coil Resistance (Ω) 0.5 [20°C(68°F) ...