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Result RESULT REFERENCE B : CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT A : Go to Next Step 4. CHECK VACUUM HOSES (PRESSURE SENSOR - AIR SWITCHING VALVE) a. Check the vacuum hose connections with the pressure sensor and ASV. b. Inspect the vacuum hose for blockages and damage. OK: Vacuum hose has no blockages or damage. NG : REPAIR OR REPLACE VACUUM HOSE OK : Go to Next Step 5. INSPECT AIR SWITCHING VALVE (PRESSURE SENSOR) a. Connect a pressure gauge to the air pressure sensor as shown in the illustration. b. Connect the Techstream to the DLC3. c. Turn the ignition switch to ON and the Techstream ON. d. Enter the following menus: Powertrain/Engine and ECT/Data List/Air pump pressure (absolute) and Air Pump2 Pressure (Absolute). e. Check that the pressure displayed on the Techstream fluctuates when applying the pressure to the pressure sensor with the pressure gauge. OK: Pressure fluctuates in response to pressure applied with pressure gauge. Result RESULT REFERENCE HINT: The Techstream displays the air pump pressure as absolute pressure. Result Proceed To P2444, P2445, P2446 and/or P2447 are output A No pending DTC is output B Result Proceed To OK A NG (for Bank 1) B NG (for Bank 2) C
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
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