Kia Cee'd: 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.

Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold. (Re ...

Heated Oxygen Sensor (HO2S) Specifications

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

Other information:

Ford Escape 2020-2026 Owners Manual: Under Hood Fuse Box
Locating the Under Hood Fuse Box Accessing the Under Hood Fuse Box Pull the latch toward you and remove the top cover. Pull the connector lever upward. Pull the connector upward to remove it. Pull both latches toward you and remove the fuse box. Turn the fuse box over and open the lid. Ide ...

Kia Cee'd JD Service Manual: Schematic diagrams
Circuit Diagram Input/Output Specification Connector Pin Lay Out IMS input/output pin information   No Signal Name I/O Contents Remark A1 - ...