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Home >> Pontiac >> 2005 >> Pursuit Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.2L - (Introduction) >> Description and Operation >> Fuel System Description >> Fuel Pressure Regulator

Fuel Pressure Regulator

Fig 1: View Of Fuel Pressure Regulator
GM828367Courtesy of GENERAL MOTORS CORP.

The fuel pressure regulator (2) is contained in the fuel sender assembly. The fuel pressure regulator is a diaphragm relief valve. The diaphragm has fuel pressure on one side and regulator spring pressure on the other side. The fuel pressure regulator is not vacuum based. Fuel pressure is controlled by a pressure balance across the regulator. The fuel system pressure is constant.

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