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DESCRIPTION The description can be found in the EVAP (Evaporative Emission) System. (See DESCRIPTION ). INSPECTION PROCEDURE Refer to the EVAP SYSTEM . MONITOR DESCRIPTION 5 hours* after the ignition switch is turned off, the leak detection pump creates negative pressure (vacuum) in HINT: *: If the engine coolant temperature is not below 35°C (95°F) 5 hours after the ignition switch is turned off, the MONITOR DESCRIPTION fuel tank Leakage from P0456 EVAP small Leak detection pump creates negative Fuel tank cap Leakage from Leakage from Canister pump Leakage from Leakage from While 2 trip Sequence Operation Description Duration - ECM activation Activated by soak timer 5, 7 or 9.5 hours after ignition switch - Atmospheric Vent valve turned OFF (vent) and EVAP system pressure 10
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
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