Acoustic Control Induction System (ACIS)

INTAKE AIR CONTROL SYSTEM

INSPECTION

1. INSPECT INTAKE AIR CONTROL VALVE ASSY NO.2

a. Check the operation.




1. With vacuum of 26.7 kPa (200 mmHg, 7.9 in.Hg) applied to the actuator, check that the valve closes.
2. 1 minute after applying the vacuum, check that the valve remains closed.

NOTE: Do not adjust the adjust screw.

If the operation is not as specified, replace the intake air control valve No. 2.

2. INSPECT INTAKE AIR CONTROL VALVE ASSY NO.3

a. Check the operation.




1. With vacuum of 26.7 kPa (200 mmHg, 7.9 in.Hg) applied to the actuator, check that the valve opens.
2. 1 minute after applying the vacuum, check that the valve remains opened.

If the operation is not as specified, replace the intake air control valve No. 3.

b. Inspect the resistance.







1. Using an ohmmeter, measure the resistance between the terminals.

If the resistance is not as specified, replace the intake air control valve No. 3.

c. Check the continuity.




1. Using an ohmmeter, check that there is no continuity between each terminal and the body.

If there is continuity, replace the intake air control valve No. 3.

d. Check the 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 F.

If the operation is not as specified, replace the intake air control valve No. 3.

3. INSPECT VACUUM SWITCHING VALVE ASSY NO.1

a. Inspect the resistance.







1. Using an ohmmeter, measure the resistance between the terminals.

If the resistance is not as specified, replace the vacuum switching valve No. 1.

b. Check the continuity.




1. Using an ohmmeter, check that there is no continuity between each terminal and the body.

If there is continuity, replace the vacuum switching valve No. 1.

c. Check the 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 F.

If the operation is not as specified, replace the vacuum switching valve No. 1.

4. INSPECT AIR CLEANER CAP SUB-ASSY

a. Check the operation.




1. Cover port C with your finger, then check that the air flow from port B to A.
2. Cover port C with your finger, then check that the air does not flow from port A to B.
3. Cover ports A and C with your fingers, then apply 60 kPa (450 mmHg, 18 in.Hg) of vacuum to port B.
Check that there is no vacuum change after 1 minute.

If the operation is not as specified, replace the air cleaner cap.