2023 Kia Niro EXFACTORY OEM SERVICE PROCEDURE

Front Heated Oxygen Sensor

Item Specification
Heater resistance (Ξ©) 2.5 (Room temperature)
Operating voltage (V) 12 (9.8 - 16.5)
Heater capacity (W) 8.1
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.