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Home >> Ford >> 1995 >> Aspire SE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing 1.3L >> Fuel System >> Fuel Pressure >> Fuel Pressure Check
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Fuel Pressure Check

  1. Connect fuel pressure gauge between fuel filter and fuel rail. Open main valve and close drain valve. Locate fuel pump test connector in engine compartment. Test connector is terminal No. 22 of Data Link Connector, located behind battery, at left shock tower. See Fig 1 .
    Fig 1: Locating Fuel Pump Test Connector (Aspire)
    G94C44331Courtesy of FORD MOTOR CO.
  2. Connect jumper wire between fuel pump test terminals. Turn ignition on. If pump does not run, check fuel pump circuit. If possible, start engine. Measure and record fuel pressure. See FUEL PUMP PERFORMANCE  table. Disconnect vacuum from pressure regulator. Turn engine off. Wait 5 minutes. Verify residual pressure is at least 21 psi (1.5 kg/cm2 ).
  3. Operate fuel pump by reconnecting jumper wire at fuel pump test connector. Check fuel pump performance. Pinch hose between pressure gauge and fuel filter. DO NOT  pinch hose longer than necessary to measure pressure. See FUEL PUMP PERFORMANCE  table. If pump does not meet specifications, inspect fuel pump circuit, fuel pump, fuel tank, and fuel filter.
FUEL PUMP PERFORMANCE

Application Specification
Pressure (1)
Volume (2)
(1) For fuel pressure specifications, see FUEL PRESSURE SPECIFICATIONS article.
(2) Minimum volume in 10 seconds is 5.5 ounces (167 cc)
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