Hyundai Genesis: Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / Engine Control / Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed on upstream and downstream of the Manifold Catalyst Converter (MCC).
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 the A/F radio is high or low, 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 installati ...

Heated Oxygen Sensor (HO2S) Specifications
Specification A/F Ratio (?)Output Voltage(V)RICHMin. 0.8LEANMax. 0.1 ItemSpecificationHeater Resistance (?)3.0 ~ 4.1 [20°C(68°F)] ...

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Hyundai Genesis (DH) 2013-2016 Service Manual: Injector Drive Box (IDB) Repair procedures


Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the ECM & TCM & IDB bracket. (Refer to Engine Control System - "ECM") 3. Disconnect the TCM (B) from the bracket after loosening mounting bolt (A). 4. Disconnect the IDB (B) fro ...

Hyundai Genesis (DH) 2013-2016 Service Manual: Transmission Oil Temperature Sensor Repair procedures


Inspection 1. Turn ignition switch OFF. 2. Disconnect the E Module connector. 3. Measure resistance between sensor signal terminal and sensor ground terminal. 4. Check that the resistance is within the specification. ...

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