Sfi System Air Intake Control Circuit
Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (AICV VSV)
INSPECT AICV VSV
INSPECT VACUUM TANK
CHECK VACUUM PIPING (HOSE AND INTAKE MANIFOLD, VACUUM TANK)
SFI SYSTEM - Air Intake Control Circuit |
DESCRIPTION
The air cleaner is equipped with 2 inlets, one of which is opened or closed by the Air Intake Control Valve (AICV). This system reduces intake noise and increases engine power at low to high engine speeds range.When the engine is operating in the low-to-mid speed range, this control operates the AICV to close one of the air cleaner inlets. When the engine speed is more than 3600 rpm and the opening angle of the throttle valve is more than 60°, the ECM activates the VSV and opens the AICV.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (AICV VSV) |
Turn the ignition switch to the ON position and turn the intelligent tester on.
Select the following menu items: Powertrain / Engine and ECT / Active Test / Activate VSV for AICS.
Check the operation of the VSV when the VSV is operated by the intelligent tester.
- Standard:
Tester Operation
| Specified Condition
|
VSV is ON
| Air from port E flows out through port F
|
VSV is OFF
| Air from port E flows out through the air filter
|
Inspect the AICV VSV (RAV4_ACA30 RM0000028LQ00BX.html).
| | REPLACE INTAKE AIR CONTROL VALVE ASSEMBLY |
|
|
Inspect the vacuum tank (RAV4_ACA30 RM0000028LQ00BX_01_0003.html).
| 4.CHECK VACUUM PIPING (HOSE AND INTAKE MANIFOLD, VACUUM TANK) |
| | REPAIR OR REPLACE VACUUM LEAKAGE POINT |
|
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