Hyundai Ioniq: Engine Control System / 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.

Removal 1.Turn the ignition switch OFF and disconnect the battery negative (-) cable.2.Remove the intake manifold. (Refer to Engine Mechanical System - "Intake Manifold")3...
SpecificationHO2S [Bank 1 / Sensor 1]
Item
Specification
Heater Resistance (Ω)2.4 - 4.0 [20°C (68°F)]HO2S [Bank 1 / Sensor 2] (Binary Type)
A/F Ratio (λ)
Output Voltage (V)
RICH0...
Other information:
In order for the FCA system to operate properly, always make sure the radar sensor
cover is clean and free of dirt, snow, and debris. Dirt, snow, or foreign substances
on the lens may adversely affect the sensing performance of the sensor.
NOTICE
Do not apply license plate frame or foreign objects such as a bumper
sticker or a bumper guard near the radar sensor...
The actual Air Conditioning refrigerant label in the vehicle may differ from
the illustration.
Each symbols and specification on air conditioning refrigerant label means as
below :
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of Compressor lubricant
Refer to chapter 8 for more detail location of the air conditioning refrigerant
label...
Categories

Adjusting the side mirrors:
1. Press either the L (driver's side) or R (passenger's side) button (1) to select
the side view mirror you would like to adjust.
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