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Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE 1. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE VSV FOR ACIS) a. Disconnect the vacuum hose from port F on the vacuum switching valve (for ACIS). b. Connect the Techstream to the DLC3. c. Start the engine. d. Enter the following menus: Powertrain/Engine and ECT/Active Test/Active the VSV for Intake Control. e. Operate the VSV for ACIS. f. Check the VSV air flow when switching the VSV. Fig. 336: Checking VSV Air Flow OK VSV AIR FLOW REFERENCE CHART NG: Go to step 4 OK: Go to Next Step 2. CHECK VACUUM HOSES (VACUUM SWITCHING VALVE - INTAKE AIR CONTROL VALVE, INTAKE MANIFOLD) NG: REPAIR OR REPLACE VACUUM HOSES OK: Go to Next Step 3. INSPECT INTAKE MANIFOLD (INTAKE AIR CONTROL VALVE) Test Condition Specified Condition VSV is ON Air from port E flows out through port F VSV is OFF Air from port E flows out through air filter
2009 Toyota Tundra 2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra
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