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Home >> Hyundai >> 1990 >> Excel GLS, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Coolant Temperature Sensor (CTS)

Coolant Temperature Sensor (CTS)

Coolant temperature sensor converts coolant temperature to an electrical signal for use by ECU. The ECU uses coolant temperature information for controlling fuel enrichment when engine is cold.