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 An ...

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] ...

See also:

Mic. Repair procedures
Inspection 1. Disconnect the negative(-) battery terminal. 2. Remove the roof trim. (Refer to the BD group - "Roof trim") ...

Curtain Airbag (CAB) Module. Description and Operation
Description Curtain airbags are installed inside the headliner (LH and RH) and protect the driver and passenger from danger when side crash occurs. The SRSCM determines deployment of curtain ...

Front Disc Brake. Components and Components Location
Components 1. Guide rod bolt 2. Bleed screw 3. Caliper body 4. Caliper carrier 5. Inner pad shim 6. Brake pad 7. Pad retainer ...