|
|
Content .. 1430 1431 1432 1433 ..
occur. By using the Techstream to perform the Air Injection Check operation in the System Check, the air-fuel Read freeze frame data using the Techstream. Freeze frame data records the engine condition when System Check: The pressure in the secondary air passage can be checked using the Techstream. a. Start the engine and warm it up. b. Turn the ignition switch off. c. Connect the Techstream to the DLC3. d. Turn the ignition switch to ON and turn the Techstream ON. e. 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 1: OFF, ASV1 CLOSE, HINT: When Manual Mode is selected, the Techstream initialization (atmospheric pressure measurement) is f. Start the engine. g. Perform the AIR system intrusive operation while the engine is idling. h. Check that the air pump (AIR PUMP), ASV and pressure in the AIR system passage (PRESSURE) displayed on the tester indicate the conditions shown in the table below. Standard AIR PRESSURE SPECIFICATION Tester Operations AIR PUMP ASV PRESSURE (1) PULSATION (2) AIR PUMP: ON, ASV: OPEN ON OPEN 1 kPa or more 15 kPa or more AIR PUMP: OFF, ASV: CLOSE OFF CLOSE Less than 5 kPa Less than 30 kPa (1) Average pumping pressure (gauge pressure). The pressure should be 1 kPa or more when the AIR (2) The cumulative exhaust pulsation calculated by the ECM. If the calculated value exceeds a certain
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
|