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:
Description of ESPOptimum driving safety now has a name : ESP, the Electronic Stability Program.ESP recognizes critical driving conditions, such as panic reactions in dangerous situations, and stabilizes the vehicle by wheel-individual braking and engine control intervention with no needfor actuating the brake or the gas pedal...
C..
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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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