Optical Sensor

Optical/Fuel Temperature Sensor:

DESCRIPTION
The optical sensor sends what is called a High Resolution Signal and a Pump Cam signal to the Powertrain Control Module (PCM).

High Resolution Signal
The PCM uses this signal to determine injection timing and for fuel control and is one of the most important inputs to the PCM.

Pump Cam Signal
The Pump Cam signal reference pulses are used by the PCM to calculate injection timing and is one of the most important inputs to the PCM.