Engine Control System/Fuel System

Heated Oxygen Sensor (HO2S) Repair Procedures

9steps
~59min
4/5difficulty
1special tools
02040608010049.136N·mlb·ft
Tightening torque found on this page
Done 0 of 9

Inspection

  1. Turn the ignition off.
  2. Disconnect the HO2S connector.
  3. Measure the resistance between terminals 2 and 5 [B1/S1] of the HO2S.
  4. Measure the resistance between terminals 3 and 4 [B1/S2] of the HO2S.
  5. Make sure the resistance is within specification.

    Specification: Refer to "Specifications"

Removal

[Bank 1/Sensor 1]
  1. Turn the ignition OFF and disconnect the negative (-) battery cable.
  2. Disconnect the connector (A) and remove the sensor (B).
  3. Turn the ignition OFF and disconnect the negative (-) battery cable.
  4. Disconnect the connector (A) and remove the sensor (B).
[Bank 1/Sensor 2]

Installation

  1. Install in the reverse order of removal. Heated Oxygen Sensor Installation: 39.2–49 N·m

Test yourself

A quick Hyundai Kona quiz: every answer comes with an explanation and a link to the manual page.