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b. Measure the valve opening temperature of the thermostat. Standard opening temperature: 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is c. Reinstall the thermostat. (See INSTALLATION ). NG : REPLACE THERMOSTAT . (See THERMOSTAT ). OK : REPLACE ENGINE COOLANT TEMPERATURE SENSOR (See REMOVAL ) DTC P011B ENGINE COOLANT TEMPERATURE/INTAKE AIR TEMPERATURE CORRELATION DESCRIPTION The engine has two temperature sensors, an Engine Coolant Temperature (ECT) sensor and an Intake Air DTC DETECTION CONDITION AND TROUBLE AREA DTC Code DTC Detection Condition Trouble Area P011B All of the following conditions are met (2 trip detection logic): a. The battery voltage is 10.5 V or higher. b. 7 hours or more have elapsed from engine stop on the previous trip. c. 15 seconds after a cold engine start. d. The minimum Intake Air Temperature (IAT) after the engine starts is higher than -10°C (14°F). e. The average Engine Coolant Temperature (ECT) before the engine starts is higher than -10°C (14°F). f. The difference between the readings of ECT and IAT is higher than 20° C (36°F). IAT ECT ECM
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra
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