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Home >> Ford >> 2005 >> Excursion 6.0 P, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Pinpoint Tests - 6.0L Diesel (99P F450/550) >> Pinpoint Test AP: Injection Control Pressure Too High - Engine OFF >> Introduction >> Signal Functions

Signal Functions

The injection control pressure (ICP) sensor is a variable capacitance sensor that is supplied a 5-volt reference signal from the powertrain control module (PCM) producing a linear analog voltage signal that indicates pressure.

The primary function of the ICP sensor is to provide a feedback signal to indicate the oil rail pressure so the PCM can command the correct injector timing, pulse width, and injection control pressure for proper fuel delivery at all speed and load conditions.

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