INTAKE MANIFOLD (w/ DPF) INSPECTION

INSPECT INTAKE MANIFOLD

Note

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

1. Disconnect the 2 vacuum hoses from the actuator.

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 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.

      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.

INSPECT VACUUM SWITCHING VALVE (for Swirl Control Valve)

1. Measure the resistance according to the value(s) in the table below.

   

   Standard Resistance
   Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 33 to 39 Ω 1 - Body ground 20°C (68°F) 10 kΩ or higher 2 - Body ground

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

2. Check the operation of the VSV.

   
   
   1. 

      Text in Illustration

      *1	Port E
      *2	Filter
      *a	Air

      Check that air flows from port E to the filter.

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

3. 

   Text in Illustration

   *1	Port E
   *2	Port F
   *a	Air

   Apply battery voltage across the terminals.

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

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