Engine Coolant Temperature (ECT) Sensor Inspection

Warm up sender gauge (2). Thus make sure its resistance is decreased with increase of its temperature.

ECT sender gauge specifications 

136 - 216 ohm at 50°C (122°) 

16.4 - 19.4 D. at 120°C (248°) 

Fig 1: Checking Engine Coolant Temperature Sensor

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