INTAKE MANIFOLD (w/ EGR Cooler) INSPECTION


  1. INSPECT INTAKE MANIFOLD

    A01DV97

    Note

    Do not adjust the adjusting screw or 2 actuator installation bolts.


    1. Disconnect the vacuum hose from the actuator.

      A01DXB7

    2. Check the operation of the swirl control valve.


      1. Check that the valve is fully opened under normal conditions.

      2. Connect the vacuum pumps as shown in the illustration. First apply negative pressure to the diaphragm closer to the intake manifold. This will cause the actuator rod to move, which causes the swirl control valve to move. Then, apply negative pressure to the diaphragm on the outer side. This will cause the actuator rod to move further, which also causes the swirl control valve to move further. Check that the valve is fully closed when a negative pressure of 35 kPa (270 mmHg, 10 in.Hg) is applied.

      3. Leave it for 1 minute and check that the vacuum pump needle does not move.

        If the result is not as specified, replace the intake manifold.

        Tech Tips

        When applying negative pressure to the diaphragm on the outer side, the diaphragm closer to the intake manifold must be in a vacuum state.

  2. INSPECT VACUUM SWITCHING VALVE (for Swirl Control Valve)


    1. Measure the resistance of the intake manifold.

      A01DW6UE01
      Standard resistance
      Tester Connection Specified Condition
      1 - 2 33 to 39 Ω at 20°C (68°F)

      1 - Body ground

      2 - Body ground

      		 10 kΩ or higher

      If the result is not as specified, replace the vacuum control valve set.

    2. A01DVNCE01

      Check the operation of the VSV.


      1. Check that air flows from port E to the filter.

        If the result is not as specified, replace the vacuum control valve set.

      2. A01DWPEE01

        Apply battery voltage across the terminals.

      3. Check that air flows from port E to port F.

        If the result is not as specified, replace the vacuum control valve set..