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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 91 (Engine Control System Diagnosis - 1.6L (3 Of 3) - Optima (Except HEV)) >> DTC P2270: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2) >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.

■ Visual Check 

  1. Ignition "OFF" and disconnect HO2S (S2) connector.
  2. Check that HO2S (S2) is contaminated or damaged by foreign materials.
  3. Does the HO2S (S2) work properly? (Check variation)

    YES 

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If problem still occurs, replace HO2S (S2) and then go to "SYSTEM INSPECTION " procedure.