LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2012 >> Optima SX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 2.0L >> Heated Oxygen Sensor (HO2S) >> Specification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Heated Oxygen Sensor (HO2S): Specification

HO2S (Bank 1/Sensor 1) 

ITEM SPECIFICATION CHART

Item Specification
Heater Resistance (Ω) 2.5 ~ 4.0 (20°C (68°F))

HO2S (Bank 1/Sensor 2) 

VOLTAGE SPECIFICATION CHART

A/F Ratio (λ) Output Voltage (V)
RICH Approx. 0.9
LEAN Approx. 0.04
ITEM SPECIFICATION CHART

Item Specification
Heater Resistance (Ω) 3.3 ~ 4.1Ω(21°C (69.8°F))