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Home >> Ford >> 1996 >> Aspire 2D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests 1.3L >> Fuel System >> Fuel Delivery >> Fuel Pressure Regulator
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Fuel Pressure Regulator

  1. Measure fuel pressure. See FUEL SYSTEM in BASIC TESTING article. Stop engine. With fuel pressure tester still installed, measure fuel pressure after 5 minutes. If fuel pressure is greater than 21 psi (1.5 kg/cm2 ) after 5 minutes, go to next step. If fuel pressure does not remain higher than 21 psi (1.5 kg/cm2 ), fuel pressure regulator, fuel pump, or fuel injectors may be defective.
  2. Connect vacuum tester to vacuum fitting on fuel pressure regulator and apply 20 in. Hg. Replace fuel pressure regulator if vacuum does not hold for 10 seconds. Reinstall fuel pressure regulator.
  3. Start engine. Measure fuel pressure. If fuel pressure is higher than specification, inspect for engine vacuum leaks, damaged fuel pressure regulator housing, or restricted fuel return line. Replace fuel pressure regulator if no problems exist.
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