EGR VALVE (w/ EGR Cooler) INSPECTION


  1. INSPECT ELECTRIC EGR CONTROL VALVE ASSEMBLY


    1. A01DVRI

      Inspect the electric EGR control valve.


      1. When a vacuum of 26.7 kPa (200 mmHg, 7.87 in.Hg) is applied to the diaphragm chamber, check that the shaft rises and that air flows out.

      2. Maintaining the above conditions, check that there are no leaks and that the shaft stays in position.

      3. Check that the valve does not have heavy carbon deposits and is not stuck.

        If the result is not as specified, replace the electric EGR control valve.

    2. A01DXCEE03

      Inspect the EGR valve position sensor.


      1. Measure the resistance between terminals 1 (VC) and 2 (E2) of the EGR valve position sensor.

        Standard resistance
        2.8 to 7.8 kΩ at 20°C (68°F)

        If the result is not as specified, replace the electric EGR control valve.

    3. A01DVDGE01

      Crate a vacuum in the diaphragm chamber. Check the resistance between terminals 3 (EGLS) and 2 (E2) of the lift sensor when the valve is fully opened and fully closed.

      Standard resistance
      EGR Valve Condition Specified Condition
      Fully opened 2.0 to 7.0 kΩ at 20°C (68°F)
      Fully closed 0.1 to 2.5 kΩ at 20°C (68°F)

      Tech Tips

      The resistance increases in proportion to the opening angle of the EGR valve.

      If the result is not as specified, replace the electric EGR control valve.

  2. INSPECT NO. 2 EGR VALVE ASSEMBLY


    1. A01E0ML

      When a vacuum of 33.3 kPa (250 mmHg, 9.88 in.Hg) or more is applied to the diaphragm chamber, check that the valve turns and that air flows out.

    2. Maintaining the above conditions, check that there are no leaks and that the valve does not return.

    3. Check that the valve does not have heavy carbon deposits and is not stuck.

      If the result is not as specified, replace the No. 2 EGR valve.