Hyundai Equus: Heated Oxygen Sensor (HO2S) Description and Operation
Second generation VI (2009–2026) / Hyundai Equus VI 2009-2026 Service Manual / Engine Control/Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation
Second generation VI (2009–2026) / Hyundai Equus VI 2009-2026 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 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 And Exhaust System” in EM group).
3.
Disconnect ...
Heated Oxygen Sensor (HO2S) Specifications
Specification
A/F Ratio (x)Output Voltage(V)RICH0.6 ~ 1.0LEAN0 ~ 0.4
ItemSpecificationHeater Resistance (x)Approx. 9.0 [21°C(69.8°F)]
...
See also:
Smart Cruise Control Unit Specifications
Specification
ItemSpecificationPower supply(V)12Operation voltage (V)9 ~ 16
...
Child restraint system
Children under age 13 must always ride in the rear seats and must always be properly
restrained to minimize the risk of injury in an accident, sudden stop or sudden
maneuver. According to accident ...
Auto Light Sensor Repair procedures
Inspection
In the state of IGN1 ON, when the multi function switch
module detects auto light switch on, tail lamp relay output and head
lamp low relay output are controlled according to auto li ...
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