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Hyundai Azera: Heated Oxygen Sensor (HO2S) Description and Operation - Engine Control System - Engine Control/Fuel System - Hyundai Azera 2011-2025 Service ManualHyundai Azera: Heated Oxygen Sensor (HO2S) Description and Operation

Description
Heated Oxygen Sensor (HO2S) consists of the zirconium and the alumina and is installed on upstream and downstream of the Warm-up Catalytic Converter (WCC).
After it compares oxygen consistency of the atmosphere with the exhaust gas, it transfers the oxygen consistency of the exhaust gas to the ECM. When A/F ratio is rich or lean, it generates approximately 1V or 0V respectively. In order that this sensor normally operates, the temperature of the sensor tip is higher than 370°C (698°F). So it has a heater which is controlled by the ECM duty signal.
When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.

Knock Sensor (KS) Repair procedures
Removal [Knock Sensor #1 (Bank 1)] 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the knock sensor connector (A). 3. Remove the intake man ...

Heated Oxygen Sensor (HO2S) Specifications
Specification [Bank 1 / sensor 2, Bank 2 / sensor 2] A/F Ratio (?)Output Voltage(V)RICHMin. 0.8LEANMax. 0.1 ItemSpecificationHeater Resistance (?)3.3 ~ 4.1[20°C(68°F)] [Bank 1 / sensor 1, ...

See also:

Parking brake
Applying the parking brake To engage the parking brake, first apply the foot brake and then depress the parking brake pedal down as far as possible. In addition it is recommended that when parking ...

Clothes hanger
To use the hanger, pull down the upper portion of hanger. CAUTION - Hanging clothing Do not hang heavy clothes, since those may damage the hook. ...

Inside Rear View Mirror Repair procedures
Replacement [ECM Mirror] 1. Remove the ECM mirror cover (A). 2. Disconnect the ECM mirror connector (B). 3. Loosen the ECM mirror mounting screw (A). 4. Push the ECM mirror base up to ...

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