Variable Induction System: Testing and Inspection

ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS) ON-VEHICLE INSPECTION





1. CONNECT VACUUM GAUGE
Using a 3-way connector, connect vacuum gauge to the vacuum hose between the actuator and VSV.
2. START ENGINE
3. INSPECT INTAKE AIR CONTROL VALVE





(a) While the engine is idling, check that the vacuum gauge needle does not move.





(b) Rapidly depress the accelerator pedal to fully open position and check that the vacuum gauge needle momentarily fluctuates up to approx. 33.3 kPa (250 mmHg, 9.84 in.Hg) or more. (The actuator rod is pulled down.)
If operation is not as specified, check each part.
4. REMOVE VACUUM GAUGE
Remove the vacuum gauge and reconnect the vacuum hose to their proper locations.