K 1500 Suburban 4WD V8-393 6.5L DSL Turbo VIN S (1996)
Diesel Fuel Temperature / Fuel Pump Position Combination Sensor: Description and Operation
Optical/Fuel Temperature Sensor
DESCRIPTION
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.