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 Service Manual: Rear Disc Brake Repair procedures
Removal 1. Remove the rear wheel & tire. Tightening torque : 88.3 ~ 107.9 N.m(9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft) 2. Remove the upper arm by loosen the rear upper arm bolt (A) and nut (B). [2WD Only] Tightening torque : 137.2 ~ 156.9N.m (14.0 ~ 16.0kgf.m, 101.2 ~115.7 lb-ft) ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: AWD LOCK indicator (if equipped)
The AWD LOCK indicator light is illuminated when the AWD LOCK button is pushed. The purpose of this AWD LOCK mode is to increase the drive power when driving on wet pavement, snow-covered roads and/or off-road.The AWD LOCK indicator light is turned off by pushing the button again. CAUTION ...