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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 90 (Engine Control System - 1.6L - Optima (Except HEV)) >> Electric Waste Gate Actuator (EWGA) >> Repair Procedures >> Adjustment >> [Rod Adjustment Procedure Flowchart]

[Rod Adjustment Procedure Flowchart]

WARNING: This page is about a different variant/trim than selected.
Fig 1: Rod Adjustment Procedure Flowchart
G11823534Courtesy of KIA MOTORS AMERICA, INC.
  1. Check that the waste gate turbo charger is cool enough to work.

    Information 

    It can help cooling down fast to use a electric fan.

    The cooling part (A) and the wind direction (B) are as follows.

    Fig 2: Locating Cooling Part
    G11823535Courtesy of KIA MOTORS AMERICA, INC.
  2. Turn the ignition switch to OFF position.
  3. Connect the diagnostic tool to DLC connector (16 pin) under the driver side instrument panel.
  4. Turn the ignition switch ON position.
    CAUTION: Do not start the engine.
  5. Select VIN or Vehicle on the initial screen.
  6. Enter "Engine Control" menu after selecting vehicle information (Vehicle model, Model year, Engine type) or entering the VIN number.
  7. Access to KDS/GDS Engine > Current Data
  8. Without starting the engine, cycle the ignition ON for 5seconds then ignition OFF for 5seconds then check the "Adaption value for the low mechanical stop of EWGA" on the KDS/GDS.

    Repeat this step until the amount of the adaption value change compared to previous cycle is below 0.05V.

    NOTE: Do not start the engine. This is a crucial step to read the correct adaption value.
    Fig 3: Screen Display - Select VIN Or Vehicle On Initial
    G11823536Courtesy of KIA MOTORS AMERICA, INC.
  9. Check that "Adaption value for the lower mechanical stop of EWGA" is within the specified voltage value.

    Voltage:  3.5 - 3.7 V

  10. If the voltage value measured is not within the specified voltage value, adjust the EWGA rod length. But, if no, no further procedure is required.
    1. Loosen the rod end lock nut (A) and remove the C-ring (B).
    2. Adjust the rod end part (C) by rotating it clockwise (D) or counterclockwise (E) to satisfy the specification.

      For example, if the coolant temperature is below 25 °C adjusted as follows.

    Adaption value for the lower mechanical stop of EWGA (V) Adjustment direction of rod end Rod length variation (After adjustment)
    >3.7 counterclockwise Longer
    < 3.5 clockwise Shorter

    Information 

    Turning angle Changing level of the adaption value (V)
    0.5 turn (180°) About 0.1
    1 turn (360°) About 0.2
    Fig 4: Rotating Rod End Part
    G11823537Courtesy of KIA MOTORS AMERICA, INC.
  11. Install the rod end (B) to the turbo charger lever (A) temporarily. Don't tighten the rod end lock nut (C) and C-ring (D).
    Fig 5: Installing Rod End To Turbo Charger Lever
    G11823538Courtesy of KIA MOTORS AMERICA, INC.
  12. Check "Adaption value for the lower mechanical stop of EWGA" after selecting "Current Data" menu.

    Turn the ignition switch ON/OFF repeatedly until the changing value of "Adaption value for the lower mechanical stop of EWGA" is within 0.05V.

    NOTE: Turn the ignition switch ON/OFF. But hold 5 seconds at each IG ON or OFF state.
    Fig 6: Screen Display - Adaption Value For Lower Mechanical Stop Of EWGA
    G11823539Courtesy of KIA MOTORS AMERICA, INC.
  13. If the voltage value measured is not within the specified voltage value, repeat 9-12 procedures until the voltage value is within the specified voltage value.
  14. Check that "Adaption value for the lower mechanical stop of EWGA" is within the specified voltage value.
  15. If it is within the specified voltage value, install the rod end to the turbo charger lever.
    1. Install the rod end (B) to the turbo charger lever (A).
    2. Tighten the rod end lock nut (C).
    3. Install the C-ring (E).
      NOTE:
      • Be careful not to remove the washer (D).
      Fig 7: Installing C-Ring (1 Of 2)
      G11823540Courtesy of KIA MOTORS AMERICA, INC.
Fig 8: Installing C-Ring (2 Of 2)
G11823541Courtesy of KIA MOTORS AMERICA, INC.