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 ...

See also:

Shoulder belt extension guide
You can adjust the position of the shoulder belt extension guide for easier access to the shoulder belt. Set the belt extension guide to the position (1~3) when using the seat belt. WARNING ...

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 ...

Transmitter precautions
✽ NOTICE The transmitter will not work if any of following occur: • The ignition key is in ignition switch. • You exceed the operating distance limit (about 90 feet [30 m]). • Th ...