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Home >> Lexus >> 2003 >> SC 430 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Intake Air Temperature (IAT) Sensor
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Intake Air Temperature (IAT) Sensor

IAT sensor is part of mass airflow sensor. Intake air temperature sensor measures incoming intake air temperature and delivers an input signal to THA terminal of Engine Control Module (ECM). ECM uses input signal for controlling fuel injection duration to improve driveability during cold engine operation.

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