Component Inspection

INSPECTION




1. INSPECT INTAKE AIR CONTROL VALVE ASSY NO.2
a. With 26.7 kPa (200 mm Hg, 7.9 in. Hg) of vacuum applied to the actuator, check that the actuator rod moves.
b. One minute after applying the vacuum, check that the actuator rod does not return.
c. If the operation is not as specified, replace the intake air control valve assembly No.2.




2. INSPECT INTAKE AIR CONTROL VALVE ASSY NO.3
a. Inspect actuator operation
1. With 26.7 kPa (200 mm Hg, 7.9 in. Hg) of vacuum applied to the actuator, check that the actuator rod moves.
2. One minute after applying the vacuum, check that the actuator rod does not return.
3. If the operation is not as specified, replace the intake air control valve No.3.




b. Inspect VSV operation
1. Using an ohmmeter, check the resistance between the terminals.

Resistance: 37 to 44 Ohm at 20 °C (68 °F)

If the resistance is not as specified, replace the VSV.




2. Inspect the VSV for ground.
- Using an ohmmeter, check that there is no continuity between each terminal and the body.
If there is continuity, replace the VSV.




3. Inspect the VSV operation.
- Check that air flows from port E to the filter.




- Apply battery voltage across the terminals.
- Check that air flows from port E to port F.

If operation is not as specified, replace the VSV.




3. INSPECT AIR CLEANER CAP SUB ASSY
a. Cover port C with finger, and check that air flows from port B to port A.
b. Cover port C with finger, and check that air does not flow from port A to port B.
c. Cover port A and C with fingers, and apply 60 kPa (450 mm Hg, 18 in. Hg) of vacuum to port B, and check that there is no change of vacuum after one minute




4. INSPECT VACUUM SWITCHING VALVE ASSY NO.1
a. Inspect the VSV for open circuit.
1. Using an ohmmeter, check the resistance between the terminals.

Resistance: 33 to 39 Ohm at 20 °C (68 °F)

If the resistance is not as specified, replace the VSV.




b. Inspect the VSV for ground.
1. Using an ohmmeter, check that there is no continuity between each terminal and the body. If there is continuity, replace the VSV.




c. Inspect the VSV operation.
1. Check that air flows from port E to the filter.




2. Apply battery voltage across the terminals.
3. Check that air flows from port E to port F.
If operation is not as specified, replace the VSV.