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ElEctrical componEnts
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FTS (Fuel Temperature Sensor)
• The FTS sensor is a two (2) wire thermistor sensor.
• The FTS sensor’s internal thermistor forms a voltage
divider with a pullup resistor inside the ECM.
• The FTS sensor changes resistance when
exposed to different temperatures.
• When the temperature of the fuel decreases,
the resistance of the thermistor increases
and the signal voltage increases.
• When the temperature of the fuel increases,
the resistance of the thermistor decreases
and the signal voltage decreases.
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