Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 46

    FU(STI)-96

    Fuel Delivery, Return and Evaporation Lines

    FUEL INJECTION (FUEL SYSTEMS)

    B: INSTALLATION

    Install in the reverse order of removal while being

    careful of the following.

    1. EVAPORATION PIPE INSTALLATION

    1) Install the evaporation pipe to the vehicle.

    2) Install the evaporation pipe protector.

    3) Install the right side rear quarter trim. <Ref. to EI-

    61, INSTALLATION, Rear Quarter Trim.>

    4) Connect the evaporation hose.

    5) Install the rear mud guard RH. <Ref. to EI-30, IN-

    STALLATION, Mud Guard.>

    2. CONNECTING THE FUEL LINE QUICK

    CONNECTOR

    CAUTION:

    • Make sure there are no damage or dust on

    connections. If necessary, clean seal surface of

    pipe.

    • When reusing the retainer, make sure that

    neither scratches nor deformation exist on the

    retainer. If it is faulty, use a new part.

    1) Connect the quick connector to pipe.
    CAUTION:

    • Make sure that the quick connector is secure-

    ly connected.

    FU-04307

    FU-04306

    FU-04305

    (A) When removed using the ST
    (B) When removed without using the ST

    (a) Seal surface
    (b) Pipe

    (A) Quick connector
    (B) Retainer

    (C) Pipe

    FU-05508

    (a)

    (b)

    (a)

    (b)

    (A)

    (B)

    FU-05511

    (A)

    (B)

    (C)

    FU(STI)-97

    Fuel Delivery, Return and Evaporation Lines

    FUEL INJECTION (FUEL SYSTEMS)

    • Make sure the two retainer pawls are en-

    gaged in their mating positions in the quick

    connector.

    • Be sure to inspect tubes and their connec-

    tions for any leakage of fuel.

    • To connect the connector, hold (d) shown in

    the figure and push in axial direction.

    • When connecting the connector, do not bend

    or twist the tube forcibly. If the tube is bent, re-

    place with a new part.

    3. CONNECTING FUEL DELIVERY HOSE,

    FUEL RETURN HOSE AND FUEL HOSE

    Connect the fuel delivery hose, fuel return hose,

    and fuel hose as shown in the figure.
    CAUTION:

    • If the connection portion has a spool or stop-

    per, do not allow the end of the hose to bend or

    ride over by inserting the hose too deep.

    • Be sure to inspect hoses and their connec-

    tions for any leakage of fuel.
    NOTE:

    Use new fuel delivery hose, fuel return hose, and

    fuel hose.

    Tightening torque:

    1.25 N·m (0.1 kgf-m, 0.9 ft-lb)

    L1: 2.5

    ±

    1.5 mm (0.098

    ±

    0.059 in)

    L2: 22.5

    ±

    2.5 mm (0.886

    ±

    0.098 in)

    4. EVAPORATION HOSE CONNECTION

    Connect the evaporation hose to the pipe with an

    overlap of 15 to 20 mm (0.59 to 0.79 in).
    L = 17.5

    ±

    2.5 mm (0.689

    ±

    0.098 in)

    C: INSPECTION

    1) Check that the fuel pipe has no deformation,

    cracks or other damages.

    2) Check that the hose and tube have no cracks,

    damage or loose part.

    (A) When removed using the ST
    (B) When removed without using the ST

    (a) Quick connector
    (b) Retainer

    (c) Pipe

    (d) Connector holding position

    FU-05509

    (b)

    (c)

    (b)

    (c)

    (A)

    (B)

    (a)

    (a) (d)

    (d)

    (d)

    (d)

    (1) When there is a spool or bump
    (2) When there is no spool or bump
    (3) Pipe
    (4) Spool or bump
    (5) Clamp
    (6) Hose

    (1) Hose
    (2) Clip
    (3) Pipe

    FU-04503

    (3)

    (5)

    (6)

    L2

    (1)

    (2)

    L1

    L1

    (4)

    FU-04501

    (1)

    (2)

    L/2

    L

    (3)

    FU(STI)-98

    Fuel System Trouble in General

    FUEL INJECTION (FUEL SYSTEMS)

    35.Fuel System Trouble in General

    A: INSPECTION

    NOTE:

    • When the vehicle is left unattended for an extended period of time, water may accumulate in the fuel tank.

    Fill fuel fully to prevent the problem.

    • In snow-covered areas, mountainous areas, skiing areas, etc. where ambient temperatures drop to 0°C

    (32°F) or less throughout the winter season, use a water removing agent in the fuel system to prevent freez-

    ing fuel system and accumulating water.

    • When water is accumulated in fuel filter, fill the water removing agent in the fuel tank.

    • Before using water removing agent, follow the cautions noted on the bottle.

    Trouble

    Possible cause

    Corrective action

    Insufficient fuel sup-
    ply to fuel injector

    a. Fuel pump does not operate.

    Defective terminal contact

    Inspect contact, especially ground, and tighten it
    securely.

    Trouble in electromagnetic or electronic cir-

    cuit parts

    Replace the faulty parts.

    b. Decline of fuel pump function

    Replace the fuel pump.

    c. Clogged fuel filter

    Replace the fuel filter. Clean or replace the fuel tank if
    necessary.

    d. Clogged or bent fuel line pipe, hose or tube

    Clean, correct or replace the fuel line pipe, hose or
    tube.

    e. Air is mixed in fuel system.

    Check the fuel line connections, correct or replace the
    defective part.

    f. Damaged diaphragm of pressure regulator

    Replace the pressure regulator.

    Leakage or blow out
    of fuel

    a. Loose connections of fuel line pipe, hose or
    tube

    Check the fuel line connections, correct or replace the
    defective part.

    b. Cracked fuel line pipe, hose or tube

    Replace the fuel line pipe, hose or tube.

    c. Cracked fuel tank or defective welding part

    Replace the fuel tank.

    d. Clogged or bent fuel line pipe, hose or tube

    Clean, correct or replace the fuel line pipe, hose or
    tube.

    Gasoline smell
    inside of compart-
    ment

    a. Loose connections of fuel line pipe, hose or
    tube

    Check the fuel line connections, correct or replace the
    defective part.

    b. Defective gasket of fuel saucer or fuel filler
    pipe assembly

    Correct or replace the gasket.

    c. Defective canister

    Replace the canister.

    Defective fuel gauge

    a. Defective operation of fuel level sensor

    Replace the fuel level sensor.

    b. Defective operation of combination meter

    Replace the combination meter.

    c. Defective operation of integrated unit

    Replace the integrated unit.

    Noise

    a. Large operation noise or vibration of fuel pump Replace the fuel pump.

    Была ли эта страница вам полезна?
    Да!Нет
    8 посетителей считают эту страницу полезной.
    Большое спасибо!
    Ваше мнение очень важно для нас.

    Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.

    Текст

    Матвей Александрович30.05.2024 20:05
    Политика конфиденциальности