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Home › Kia › 2017 › Rio SX › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (1 Of 3) › DTC P0139: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2) › Scantool Diagnostics › Monitor GDS Data

Monitor GDS Data

  1. Connect GDS to DLC (Data Link Cable).
  2. Warm up the engine to normal operating temperature.
  3. Monitor "HO2S" parameter on GDS.
    Fig 1: Monitoring HO2S Parameter On GDS
    G11847309Courtesy of KIA MOTORS AMERICA, INC.
  4. Are the parameters displayed correctly?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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