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Home >> Toyota >> 1988 >> 4Runner Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Computer Control System >> Operation >> Data Sensors >> Coolant Temperature Sensor
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Coolant Temperature Sensor

Coolant temperature sensor sends signal to ECU in relation to coolant temperature. ECU uses sensor signal for controlling fuel injection duration, spark advance system, idle speed control system and EGR system.

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