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Intake Air Temperature Sensor > < Diesel Fuel Temperature / Fuel Pump Position Combination Sensor|Locations
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Diesel Fuel Temperature / Fuel Pump Position Combination Sensor: Description and Operation

Optical/Fuel Temperature Sensor

The optical sensor sends what is called a high resolution signal and a pump cam signal to the PCM. There is a harness filter inline to the optical/fuel
temperature sensor which is used in order to filter the shared 5 volt reference signal.

Intake Air Temperature Sensor > < Diesel Fuel Temperature / Fuel Pump Position Combination Sensor|Locations