Intake Manifold Inspection


  1. INSPECT INTAKE MANIFOLD

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

Intake Manifold -- Inspection



1. INSPECT INTAKE MANIFOLD



NOTICE:
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
Do not adjust the adjusting screw or 2 swirl control valve actuator installation bolts.


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Intake Exhaust.Intake System.Intake Manifold Inspection

  1. Disconnect the 2 vacuum hoses from the actuator.

  1. 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 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 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 65 kPa (488 mmHg, 19.2 in.Hg) is applied.

    3. Wait for 1 minute and check that the vacuum pump needle does not move. If the result is not as specified, replace the intake manifold.

      HINT:
      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 according to the value(s) in the table below.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Intake Exhaust.Intake System.Intake Manifold Inspection

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		20°C (68°F)
    		33 to 39 Ω
    1 - Body ground
    		20°C (68°F)
    		1 MΩ or higher
    2 - Body ground
    If the result is not as specified, replace the vacuum control valve set.


  1. Check the operation of the VSV.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Intake Exhaust.Intake System.Intake Manifold Inspection

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

      Text in Illustration
      *1
      		Port E
      *2
      		Filter
      *a
      		Air
      If the result is not as specified, replace the vacuum control valve set.


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Intake Exhaust.Intake System.Intake Manifold Inspection

  1. Apply battery voltage across the terminals.

    Text in Illustration
    *1
    		Port E
    *2
    		Port F
    *a
    		Air

  1. Check that air flows from port E to port F.
    If the result is not as specified, replace the vacuum control valve set.