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:

EBD(Electronic Brake-force Distribution). Description and Operation
Operation The EBD system (Electronic Brake force Distribution) as a sub-system of the ABS system is to control the maximum braking effectiveness by the rear wheels. It further utilizes ...

Impact sensing door unlock system
All doors will be automatically unlocked when the impact is delivered to impact sensors while the ignition switch is ON. However, the doors may not be unlocked if mechanical problems occur with th ...

Manual climate control system
1. A/C (Air conditioning) button 2. Air intake control button 3. Rear window defroster button 4. Mode selection button 5. Fan speed control knob 6. Temperature control knob 7. Front windshield d ...