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Standard AIR PUMP OPERATIONS b. Other inspection method: The ASV operation can be confirmed by checking the cumulative pressure pulsation* provided in Perform System Check operation under Manual Mode. *: The exhaust pulsation value is calculated in the ECM. If the calculated value exceeds a certain 1. Start the engine and warm it up. 2. Turn the ignition switch off. 3. Connect the Techstream to the DLC3. 4. Turn the ignition switch to ON and turn the Techstream ON. 5. Enter the following menus: Powertrain/Engine and ECT/Utility/Air Injection Check/Manual Mode/AIR PUMP 1: ON, ASV1: OPEN, AIR PUMP 2: ON, ASV2: OPEN and AIR PUMP 6. Start the engine after the Techstream initialization is finished. 7. Perform the AIR system intrusive operation while the engine is idling. 8. Check that the air-fuel ratio and pressure in the secondary air injection system passage (PULSATION) displayed on the Techstream indicate the conditions shown in the table 9. Turn the ignition switch off. OK Performing the Air Injection Check repeatedly may cause When performing the Air Injection Check operation after Turn the ignition switch off when the Air Injection Check Air Pump Operations ASV Operations Exhaust Gas Pulsation ON OFF Not detected ON ON Detected
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
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