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Home >> Kia >> 2000 >> Sephia LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Fuel System >> Fuel Pressure >> Holding Fuel Pressure
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Holding Fuel Pressure

  1. Release fuel pressure. See FUEL PRESSURE RELEASE . Disconnect battery negative cable. Install fuel pressure gauge on service port at fuel rail. Connect battery negative cable.
  2. Jumper Data Link Connector (DLC) terminals FUEL PUMP and B+. DLC is located left side of engine compartment. See Figure. Turn ignition on for 10 seconds or less to operate fuel pump and pressurize system. Turn ignition off and remove jumper wire.
  3. On Sephia, check fuel pressure after 15 minutes and compare to specification. On Sportage, check fuel pressure after 5 minutes and compare to specification. See FUEL PRESSURE SPECIFICATIONS  table. If pressure is not as specified, check fuel pump, pressure regulator and injectors. On Sportage, also see PRESSURE REGULATOR HOLD PRESSURE (SPORTAGE)  test.
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