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

Hyundai Tucson (LM) 2010-2015 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 Engine Mechanical System - “Intake And Exhaust System”) ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] (Linear type) ItemSpecificationHeater Resistance (x)2.4 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] (Binary type) A/F Ratio (x)Output Voltage(V)RICH0.6 ~ ...

Other information:

Hyundai Tucson (LM) 2010-2015 Owners Manual: Tire replacement
If the tire is worn evenly, a tread wear indicator will appear as a solid band across the tread. This shows there is less than 1/16 inch (1.6 mm) of tread left on the tire. Replace the tire when this happens. Do not wait for the band to appear across the entire tread before replacing the ti ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Electric chromic mirror (ECM) (if equipped)
The electric rearview mirror automatically controls the glare from the headlights of the car behind you in nighttime or low light driving conditions. When the engine is running, the glare is automatically controlled by the sensor mounted in the rearview mirror. The sensor detects the light leve ...