F 350 2WD Super Duty V8-7.3L DSL Turbo VIN F (1999)
Injector Control Pressure Regulator: Description and Operation
INJECTION PRESSURE REGULATOR (IPR)
Injection Pressure Regulator
The Injection Pressure Regulator (IPR) is a variable-position valve that controls injection control pressure. Battery voltage is supplied to the injection
pressure regulator when the ignition switch is in the ON position. Valve position is controlled by switching the output signal circuit to ground inside the
Powertrain Control Module (PCM). Injection pressure is controlled by the powertrain control module based on inputs from intake air temperature,
engine oil temperature, manifold and barometric pressure, and pedal position.
Fuel injection pressure is controlled by the injection control pressure (ICP) system.The ICP system consists of the following:
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injection control pressure (ICP) sensor (located in the cylinder head oil gallery)
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Injection Pressure Regulator (IPR) located in the high-pressure oil pump
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Powertrain Control Module