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Home >> Jaguar >> 1987 >> XJ-SC >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Fuel Injection System - LUCAS/BOSCH "P" >> Operation >> Fuel Pressure Regulator
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Fuel Pressure Regulator

The fuel pressure regulator maintains a constant pressure in direct proportion to intake manifold vacuum. This is accomplished by attaching a vacuum diaphragm to the regulator.

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