Acoustic Control Induction System (ACIS)

INSPECTION

1. INSPECT INTAKE AIR CONTROL VALVE




a. With 39.9 kPa (300 mmHg, 11.8 in.Hg) of vacuum applied to the actuator, check that the actuator rod moves.
b. One minute after applying the vacuum in step (a) check that the actuator rod does not return.
If operation is not as specified, replace the intake manifold.

2. INSPECT VACUUM SWITCHING VALVE ASSEMBLY FOR IAC VALVE




a. Using an ohmmeter, check that there is continuity between each terminal.

Resistance: 33 to 39 Ohms at 20°C (68°F)
If there is no continuity, replace the VSV.




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

Resistance: 10 kOhms or higher
If there is continuity, replace the VSV.




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




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