Kia Forte: Heated Oxygen Sensor (HO2S) Description

Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Catalytic Converter. It 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) Installation

   • Install the component with the specified torques. • ...

Heated Oxygen Sensor (HO2S) Specification

HO2S [Bank 1/Sensor 1] (Linear type) Item Specification Heater Resistance (Ω) 2.4 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] (Binary type) ...

See also:

Fuel Tank Air Filter Installation
   • Install the component with the specified torques. • ...

Special Service Tools
Tool Name / Number Illustration Description Alternator pulley remover wrench 09373-27000 Removal and installation of alternator pulley ...

Tightening Torques
Engine Control System Item kgf.m N.m lb-ft ECM installation bolt 0.8 ~ 1.2 7.8 ~ 11.8 5.8 ~ 8.7 ECM bracket ins ...