Edmunds Answers

Voted Best Answer

  • avatar MrShift@Edmunds 10/20/09 8:33 pm PST

    You might test the pressure in the fuel rail with a fuel pressure gauge. If the pressure is very low, or if it's high enough but bleeds off rapidly, you may have a defective fuel pump or fuel pressure regulator. A clogged fuel filter might be a simple answer, but it's rare for a fuel filter to clog so much as to actually block that much fuel. You never know, though.

    Correct Fuel Pressure 55-62 psi

    SYSTEM DESCRIPTION
    When you turn ON the ignition switch, the control module enables the fuel pump relay which powers the fuel pump ON. The fuel pump remains ON as long as the engine is cranking or running and the control module receives ignition reference pulses. If there are no ignition reference pulses, the control module shuts the fuel pump OFF within 2 seconds after the ignition was switched to the ON position or if the engine stops.

    The fuel tank stores the fuel supply. The electric fuel pump supplies fuel through an in-line fuel filter to the fuel injection system. The pump provides fuel at a higher rate of flow than is needed by the fuel injection system. The fuel pressure regulator maintains the correct fuel pressure to the fuel injection system. A separate pipe returns unused fuel to the fuel tank.

Answers

  • brake_down_ 10/20/09 8:28 pm PST

    Check fuel electronic idle control on throttle body, as well as fuel pump and filter.

  • MrShift@Edmunds 10/20/09 8:33 pm PST

    You might test the pressure in the fuel rail with a fuel pressure gauge. If the pressure is very low, or if it's high enough but bleeds off rapidly, you may have a defective fuel pump or fuel pressure regulator. A clogged fuel filter might be a simple answer, but it's rare for a fuel filter to clog so much as to actually block that much fuel. You never know, though.

    Correct Fuel Pressure 55-62 psi

    SYSTEM DESCRIPTION
    When you turn ON the ignition switch, the control module enables the fuel pump relay which powers the fuel pump ON. The fuel pump remains ON as long as the engine is cranking or running and the control module receives ignition reference pulses. If there are no ignition reference pulses, the control module shuts the fuel pump OFF within 2 seconds after the ignition was switched to the ON position or if the engine stops.

    The fuel tank stores the fuel supply. The electric fuel pump supplies fuel through an in-line fuel filter to the fuel injection system. The pump provides fuel at a higher rate of flow than is needed by the fuel injection system. The fuel pressure regulator maintains the correct fuel pressure to the fuel injection system. A separate pipe returns unused fuel to the fuel tank.

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