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RESULT CHART HINT: If any DTCs other than P0418, P0419, P2444, P2445, P2446 and/or P2447 are output, troubleshoot B : GO TO AIR PUMP INSPECTION PROCEDURE (See INSPECTION PROCEDURE ) C : GO TO DTC CHART (See DIAGNOSTIC TROUBLE CODE CHART ) A : Go to next step. 2. PERFORM ACTIVE TEST USING TECHSTREAM (SECONDARY AIR INJECTION SYSTEM OPERATION) 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 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, AIR PUMP 2: ON, ASV 1: OPEN, ASV 2: OPEN and AIR PUMP 1: HINT: When Manual Mode is selected, the Techstream initialization (atmospheric pressure measurement) 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) status displayed on the Techstream indicate the conditions shown in the table below. Standard AIR PUMP OPERATION CHART Display (DTC Output) Proceed To P2444, P2445, P2446 and/or P2447 A P2444, P2445, P2446 and/or P2447 and P0418 and/or P0419 B P2444, P2445, P2446 and/or P2447 and other DTCs (except P0418 and P0419) C Tester Operations AIR PUMP ASV PRESSURE* AP (AIR PUMP): ON, ASV: OPEN ON ON 1 kPa or more AP (AIR PUMP): OFF, ASV: CLOSE OFF OFF Less than 1 kPa
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra
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