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Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (5 Of 6) (PHEV) >> DTC P2096-00: Post Catalyst Fuel Trim System too Lean (Bank 1) >> System Inspection >> O2 Sensor Inspection >> Check HO2S
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Check HO2S

  1. Visually/physically inspect the following conditions:
    • Ensure that the sensor is securely installed
    • Check for corrosion on terminals
    • Check for damaged wiring
    • Repair as necessary and go to next step
  2. Ignition "OFF"
  3. Connect KDS to Data Link Connector (DLC).
  4. Warm up the engine to normal operating temperature and let it idle.
  5. Monitor following parameters in "Current Data" with KDS.

    Specification:  Above 0.6V at idle

    G13163426Courtesy of KIA MOTORS AMERICA, INC.
  6. Is measured value within specification?

    YES 

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, Replace the O2 Sensor and then go to "VERIFICATION OF REPAIR " procedure.
CAUTION:
  • Install the component with the specified torques.
  • Note that internal damage may occur when the component is dropped or mis-treated.
CAUTION:
  • DO NOT use a cleaner, spray, or grease to sensing element and connector of the sensor because oil component in them may cause malfunction or affects on sensor performance.
  • Sensor and its wiring may be damaged in case of contacting with the exhaust system (Exhaust Manifold, Catalytic Converter, and others).
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