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Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 6) (PHEV) >> DTC P0401-00: Exhaust Gas Recirculation Flow Insufficient Detected >> Component Inspection >> EGRV Actuation Test >> Notes
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EGRV Actuation Test: Notes

  1. Connect KDS to Data Link Connector (DLC).
  2. Ignition "ON" & Engine "OFF"
  3. Perform "Exhaust Gas Recirculation Valve" in "Actuation Test" with KDS.
  4. Monitor "Exhaust Gas Recirculation Valve" parameter in "Current Data" with KDS.

    Specification:  Refer to Figure below (Also, operating sound (Clicking sound) is heard)

    G13163034Courtesy of KIA MOTORS AMERICA, INC.
  5. Is measured value within specification?

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If the diagnostics have been performed correctly with no failure found, replace the ECM/PCM and then go to "VERIFICATION OF REPAIR " procedure.

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If no problems were found with the circuits or connectors, EGR Valve and then go to "VERIFICATION OF REPAIR " procedure.
CAUTION: After replacing the Electric EGR control valve, MUST perform the "Resetting Adaptive Values" procedure. Otherwise trouble related with engine performance or emission control may occur until ECM learning about the component is over.