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Exhaust Pressure (EP) Sensor
Exhaust Pressure (EP) Sensor
•
The PCM uses the EP sensor to monitor exhaust pressure, which is used to control the VGT and the EGR
valves.
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An important point to remember is that a VREF shorted to ground at the EP sensor on the 6.0L prevents engine
startup by shutting down the PCM. This can also result in a no-crank condition.
•
The EP is a variable-capacitance sensor.
•
The EP sensor uses 5 volt VREF to produce an analog EP signal.
•
The EP sensor uses signal return from the PCM as a ground.
FIRTFT 6.0L Diesel Engine EGR System
LESSON 2: THEORY AND OPERATION
27-OCT-04
2-7
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