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Home >> Dodge and Ram >> 1989 >> Lancer Base, 2.2 D, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 2.2L/2.5L SPFI Tests/Code >> Operation >> Coolant Temperature Sensor
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Coolant Temperature Sensor

The coolant temperature sensor is located in the thermostat housing. Input from this sensor allows SMEC to richen air/fuel mixtures until normal operating temperature is reached. The sensor is a variable resistor with a range of -40°F (-40°C) to 265°F (129°C). This sensor is also used to turn on radiator fan.