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2004
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Spectra Base, 1.8 2, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System/Fuel System - 1.8L
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MFI Control System Components
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Engine Coolant Temperature (ECT) Sensor
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Inspection
Engine Coolant Temperature (ECT) Sensor: Inspection
Measure resistance of sensor using ohmmeter.
COOLANT TEMPERATURE SENSOR RESISTANCE
Water temperature °F (°C)
Resistance (KΩ)
68°F (20°C)
2.45 +/- 0.24
If resistances are not within specification, replace engine coolant temperature sensor.