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HOMESERVICE MANUALSSUBARU1990XT-6 4WD L6-2.7L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSSENSORS AND SWITCHES - COMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)DESCRIPTION AND OPERATION
1990 Subaru XT-6 4WD L6-2.7L SOHC

Coolant Temperature Sensor/Switch (For Computer): Description and Operation

1990 Subaru XT-6 4WD L6-2.7L SOHCSECTION Description and Operation

Coolant Temperature Sensor:





PURPOSE
The ECU utilizes engine temperature information to calculate the following:
^ Injection quantity
^ Ignition timing
^ Canister purge
^ Idle speed

LOCATION
The sensor is located on the rear of the water cross-over tube on the drivers side.

CONSTRUCTION
The sensor is constructed of a thermistor element in a sealed capsule, with an electrical connector.

Coolant Temperature Sensor Range Chart:





OPERATION
The coolant temperature sensor contains a thermistor whose resistance changes with the temperature. The ECU sends a reference voltage to the sensor and measures changes in resistance as the engine temperature varies.

RENDER: 1.0x

NO RELATED

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