Hyundai Equus: Heated Oxygen Sensor (HO2S) Description and Operation
Second generation VI (2009–2024) / Hyundai Equus VI 2009-2024 Service Manual / Engine Control/Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation
Second generation VI (2009–2024) / Hyundai Equus VI 2009-2024 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 the ...
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:
Keep paint and trim in good condition
Scratches or chips in the finish should be covered with "touch-up" paint as soon
as possible to reduce the possibility of corrosion. If bare metal is showing through,
the attention of a ...
Auto Defogging Actuator Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the auto defogging connector.
3.
Verify that the auto defogging actuator operates to the open
position when connecting 12V to ...
GAWR (Gross axle weight rating)
This is the maximum allowable weight that can be carried by a single axle (front
or rear). These numbers are shown on the certification label. The total load on
each axle must never exceed its GAW ...
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