Subaru IMPREZA 2001 Service Manual
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Subaru IMPREZA 2001 Service Manual

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2001 IMPREZA SERVICE MANUAL
ENGINE 2 SECTION
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.
FUJI HEAVY INDUSTRIES LTD.
QUICK REFERENCE INDEX
FUEL INJECTION (FUEL SYSTEMS)
EMISSION CONTROL
(AUX. EMISSION CONTROL DEVICES)
EXHAUST
IGNITION
ENGINE(DIAGNOSTICS)
FUEL INJECTION (FUEL SYSTEMS)
EMISSION CONTROL
(AUX. EMISSION CONTROL DEVICES)
INTAKE (INDUCTION)
MECHANICAL
EXHAUST
IGNITION
ENGINE (DIAGNOSTICS)
FU(SOHCw/oOBD)
EC(SOHCw/oOBD)
EX(SOHCw/oOBD)
IG(SOHCw/oOBD)
EN(SOHCw/oOBD)
FU(DOHC TURBO)
EC(DOHC TURBO)
IN(DOHC TURBO)
ME(DOHC TURBO)
EX(DOHC TURBO)
IG(DOHC TURBO)
EN(DOHC TURBO)
G1830GE3

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Summary of Contents for Subaru IMPREZA 2001

  • Page 1 (AUX. EMISSION CONTROL DEVICES) EXHAUST EX(SOHCw/oOBD) IGNITION IG(SOHCw/oOBD) This service manual has been prepared to provide SUBARU service personnel ENGINE(DIAGNOSTICS) EN(SOHCw/oOBD) with the necessary information and data for the correct maintenance and repair of SUBARU vehicles. FUEL INJECTION (FUEL SYSTEMS)

  • Page 2: Table Of Contents

    FUEL INJECTION (FUEL SYSTEMS) FU(SOHCw/oOBD) Page General Description ..................2 Throttle Body.....................14 Intake Manifold..................15 Engine Coolant Temperature Sensor............27 Crankshaft Position Sensor...............28 Camshaft Position Sensor.................29 Knock Sensor....................30 Throttle Position Sensor................31 Intake Air Temperature and Pressure Sensor...........34 Idle Air Control Solenoid Valve ..............35 Fuel Injector ....................36 Oxygen Sensor ..................42 Engine Control Module................44...

  • Page 3: General Description

    GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) 1. General Description A: SPECIFICATIONS Model 50 2 (13.2 US gal, 11.0 Imp gal) Capacity Fuel tank Location Under rear seat Type Impeller Shutoff discharge pressure 370 — 677 kPa (3.77 — 6.9 kg/cm , 53.6 —...
  • Page 4 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) FU(SOHCw/oOBD)-3...
  • Page 5 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) B: COMPONENT 1. INTAKE MANIFOLD (20) (23) (22) (13) (20) (14) (16) (10) (21) (15) (19) (18) (21) (11) (18) (12) (17) (19) (19) (18) EN1002 FU(SOHCw/oOBD)-4...
  • Page 6 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) Intake manifold gasket RH (11) Intake manifold gasket LH (20) Clip Fuel injector pipe (12) Fuel pipe protector LH (21) Guide pin Fuel injector (13) Intake air temperature and pres- (22) Plug cord holder RH sure sensor O-ring (23)
  • Page 7 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) 2. AIR INTAKE SYSTEM B2M3455C Gasket Throttle body Tightening torque: N·m (kgf-m, ft-lb) Throttle position sensor T1: 1.6 (0.16, 1.2) Idle air control solenoid valve T2: 22 (2.2, 16) FU(SOHCw/oOBD)-6...
  • Page 8 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) 3. CRANKSHAFT POSITION, CAMSHAFT POSITION AND KNOCK SENSORS B2M2282B Crankangle position sensor Camshaft position sensor Tightening torque: N·m (kgf-m, ft-lb) Knock sensor Camshaft position sensor support T1: 6.4 (0.65, 4.7) T2: 24 (2.4, 17.4) FU(SOHCw/oOBD)-7...
  • Page 9 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) 4. FUEL TANK (25) (16) (10) (11) (11) (11) (14) (13) (24) (12) (24) (12) (12) (15) (11) (17) (19) (18) (20) (11) (21) (11) (22) (18) (19) (11) (23) EN0439 FU(SOHCw/oOBD)-8...
  • Page 10 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) Heat sealed cover (11) Clip (21) Fuel pipe ASSY Fuel tank band (12) Evaporation hose B (22) Evaporation hose F Protector RH (13) Joint pipe (23) Fuel return hose B Fuel tank (14) Evaporation hose C (24) Evaporation hose G Fuel pump gasket...
  • Page 11 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) 5. FUEL LINE (19) (18) (17) (24) (20) (16) (25) (15) (24) (22) (13) (21) (23) (14) (12) (1) (1) (10) (10) (11) EN0440 FU(SOHCw/oOBD)-10...
  • Page 12 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) Clip (11) Fuel pipe ASSY (21) Two-way valve drain hose A Fuel delivery hose A (12) Grommet (22) Connector Fuel filter bracket (13) Canister hose A (23) Two-way valve drain hose B Fuel filter holder (14) Canister (24)
  • Page 13 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) 6. FUEL FILLER PIPE (10) (11) EN0441 Fuel filter pipe ASSY Air vent pipe Tightening torque: N·m (kgf-m, ft-lb) Evaporation hose holder Air vent pipe holder T: 7.5 (0.76, 5.5) Clamp Filler pipe packing Clamp Filler ring Air vent hose...
  • Page 14 GENERAL DESCRIPTION FUEL INJECTION (FUEL SYSTEMS) C: CAUTION • Be careful not to burn your hands, because each part on the vehicle is hot after running. • Wear working clothing, including a cap, protec- • Be sure to tighten fasteners including bolts and tive goggles, and protective shoes during opera- nuts to the specified torque.

  • Page 15: Throttle Body

    THROTTLE BODY FUEL INJECTION (FUEL SYSTEMS) 2. Throttle Body 6) Disconnect air by-pass hose from air purge con- trol solenoid valve. A: REMOVAL 1) Disconnect battery ground cable. H2M2949 (A) Throttle position sensor G6M0095 2) Remove air cleaner case. (B) Idle air control solenoid valve (C) Air by-pass hose from purge control solenoid valve 7) Disconnect engine coolant hoses from throttle...

  • Page 16: Intake Manifold

    INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 3. Intake Manifold NOTE: Do not disconnect power steering hose. A: REMOVAL 1) Release fuel pressure. <Ref. to FU(SOHCw/ oOBD)-47, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.> 2) Open fuel flap lid, and remove fuel filler cap. 3) Disconnect battery ground cable.
  • Page 17 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) (7) Place power steering pump and tank on the 12) Remove air cleaner case stay RH and engine right side wheel apron. harness bracket, and disconnect engine harness connectors from bulkhead harness connectors. EN0208 8) Disconnect spark plug cords from spark plugs.
  • Page 18 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 16) Disconnect connector from oil pressure switch. 20) Remove intake manifold. B2M1253 B2M0160 17) Disconnect connector from camshaft position B: INSTALLATION sensor. 1) Install intake manifold onto cylinder heads. CAUTION: Always use new gaskets. Tightening torque: 25 N·m (2.5 kgf-m, 18.1 ft-lb) B2M4263...
  • Page 19 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 3) Connect connector to camshaft position sensor. 7) Connect connectors to engine coolant tempera- ture sensor. B2M4263 4) Connect connector to oil pressure switch. B2M4261 8) Install air cleaner case stay RH and engine har- ness bracket, and connect engine harness connec- tors to bulkhead connectors.
  • Page 20 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 11) Connect PCV hose to intake manifold. (4) Install power steering pipes onto right side intake manifold protector. B2M4258 12) Connect spark plug cords to spark plugs. B2M4126 (5) Install V-belt. <Ref. to ME(SOHC)-42, IN- 13) Install power steering pump and tank on brack- ets.
  • Page 21 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 17) Connect connector to fuel pump relay. 3) Remove ignition coil and ignitor assembly. EN0344 H2M2958 18) Connect battery ground cable. 4) Disconnect connector from intake air tempera- ture and pressure sensor. G6M0095 H2M2959 C: DISASSEMBLY 5) Remove intake air temperature and pressure 1) Disconnect engine ground terminal from intake...
  • Page 22 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 8) Disconnect pressure regulator vacuum hose 12) Disconnect connector from purge control sole- from intake manifold. noid valve. H2M2961 B2M3485 9) Remove fuel pipe protector LH. 13) Disconnect air by-pass hose (A) from purge control solenoid valve.
  • Page 23 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 17) Remove bolt which installs injector pipe on in- (2) Remove fuel injector while lifting up fuel in- take manifold as shown in figure. jector pipe. H2M2965 H2M2970 18) Remove bolt which installs injector pipe on in- 21) Loosen clamp which holds front left side fuel take manifold.
  • Page 24 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 24) Remove bolt which installs fuel pipes on intake D: ASSEMBLY manifold. 1) Install fuel pipe assembly (B) and pressure reg- ulator (A), etc. to intake manifold. H2M2974 25) Remove fuel pipe assembly (B) and pressure H2M2976A regulator (A), from intake manifold.
  • Page 25 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 5) Connect left side fuel hose to injector pipe, and 7) Tighten bolt which installs injector pipe on intake tighten clamp screw. manifold. Tightening torque: 5.0 N·m (0.51 kgf-m, 3.7 ft-lb) B2M4289 6) Install fuel injectors. CAUTION: H2M2965 Always use new o-rings.
  • Page 26 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 10) Install purge control solenoid valve. 15) Install fuel pipe protector RH. Tightening torque: 19 N·m (1.9 kgf-m, 13.7 ft-lb) B2M3487 11) Connect hoses to purge control solenoid valve. CAUTION: B2M4130 Carefully connect the evaporation hoses. 16) Install fuel pipe protector LH.
  • Page 27 INTAKE MANIFOLD FUEL INJECTION (FUEL SYSTEMS) 18) Install throttle body to intake manifold. 21) Connect connector to intake air temperature and pressure sensor. CAUTION: 22) Connect connectors to throttle position sensor Replace gasket with a new one. and idle air control solenoid valve. Tightening torque: 23) Install ignition coil and ignitor assembly.

  • Page 28: Engine Coolant Temperature Sensor

    ENGINE COOLANT TEMPERATURE SENSOR FUEL INJECTION (FUEL SYSTEMS) 4. Engine Coolant Temperature B: INSTALLATION Install in the reverse order of removal. Sensor Tightening torque: A: REMOVAL 16 N·m (0.16 kgf-m, 1.2 ft-lb) 1) Disconnect battery ground cable. B2M4275 G6M0095 2) Remove air intake duct and air cleaner assem- bly.

  • Page 29: Crankshaft Position Sensor

    CRANKSHAFT POSITION SENSOR FUEL INJECTION (FUEL SYSTEMS) 5. Crankshaft Position Sensor B: INSTALLATION Install in the reverse order of removal. A: REMOVAL Tightening torque: 1) Disconnect battery ground cable. T: 6.4 N·m (0.65 kgf-m, 4.7 ft-lb) G6M0095 B2M1252B 2) Remove bolt which install crankshaft position sensor to cylinder block.

  • Page 30: Camshaft Position Sensor

    CAMSHAFT POSITION SENSOR FUEL INJECTION (FUEL SYSTEMS) 6. Camshaft Position Sensor 6) Remove camshaft position sensor itself. A: REMOVAL 1) Disconnect battery ground cable. B2M2322 B: INSTALLATION Install in the reverse order of removal. G6M0095 2) Disconnect connector from camshaft position Tightening torque: sensor.

  • Page 31: Knock Sensor

    KNOCK SENSOR FUEL INJECTION (FUEL SYSTEMS) 7. Knock Sensor B: INSTALLATION 1) Install knock sensor to cylinder block. A: REMOVAL Tightening torque: 1) Disconnect battery ground cable from battery 24 N·m (2.4 kgf-m, 17.4 ft-lb) ground terminal. NOTE: The extraction area of the knock sensor cord must be positioned at a 45°...

  • Page 32: Throttle Position Sensor

    THROTTLE POSITION SENSOR FUEL INJECTION (FUEL SYSTEMS) 8. Throttle Position Sensor B: INSTALLATION Install in the reverse order of removal. A: REMOVAL Tightening torque: 1) Disconnect battery ground cable. 1.6 N·m (0.16 kgf-m, 1.2 ft-lb) CAUTION: When installing throttle position sensor, adjust to the specified data.
  • Page 33 Tightening torque: 1.6 N·m (0.16 kgf-m, 1.2 ft-lb) B2M3148A 5) Turn ignition switch to ON, and Subaru Select Monitor switch to ON. 6) Select {2. Each System Check} in Main Menu. 7) Select {Engine Control System} in Selection Menu.
  • Page 34 THROTTLE POSITION SENSOR FUEL INJECTION (FUEL SYSTEMS) 11) Tighten throttle position sensor holding screws. Tightening torque: 1.6 N·m (0.16 kgf-m, 1.2 ft-lb) B2M3765 FU(SOHCw/oOBD)-33...

  • Page 35: Intake Air Temperature And Pressure Sensor

    INTAKE AIR TEMPERATURE AND PRESSURE SENSOR FUEL INJECTION (FUEL SYSTEMS) 9. Intake Air Temperature and B: INSTALLATION Install in the reverse order of removal. Pressure Sensor Tightening torque: A: REMOVAL 3.4 N·m (0.35 kgf-m, 2.5 ft-lb) 1) Disconnect battery ground cable. H2M2982 G6M0095 CAUTION:...

  • Page 36: Idle Air Control Solenoid Valve

    IDLE AIR CONTROL SOLENOID VALVE FUEL INJECTION (FUEL SYSTEMS) 10.Idle Air Control Solenoid B: INSTALLATION Install in the reverse order of removal. Valve CAUTION: A: REMOVAL Always use new gasket. 1) Disconnect battery ground cable. Tightening torque: 1.6 N·m (0.16 kgf-m, 1.2 ft-lb) G6M0095 2) Disconnect connector from idle air control sole- H2M2984...

  • Page 37: Fuel Injector

    FUEL INJECTOR FUEL INJECTION (FUEL SYSTEMS) 11.Fuel Injector (3) Remove bolts which install power steering pump to bracket. A: REMOVAL 1. RH SIDE 1) Release fuel pressure. <Ref. to FU(SOHCw/oOBD)-47, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.> 2) Open fuel flap lid, and remove fuel filler cap. 3) Disconnect battery ground cable.
  • Page 38 FUEL INJECTOR FUEL INJECTION (FUEL SYSTEMS) 7) Remove fuel pipe protector RH. 10) Remove fuel injector from intake manifold. (1) Remove fuel injector securing clip. B2M4130 8) Disconnect connector from fuel injector. H2M2991 (2) Remove fuel injector while lifting up fuel in- jector pipe.
  • Page 39 FUEL INJECTOR FUEL INJECTION (FUEL SYSTEMS) 2. LH SIDE 8) Move washer tank, and secure it away from working area. 1) Release fuel pressure. <Ref. to FU(SOHCw/ oOBD)-47, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.> 2) Open fuel flap lid, and remove fuel filler cap. 3) Disconnect battery ground cable.
  • Page 40 FUEL INJECTOR FUEL INJECTION (FUEL SYSTEMS) 12) Remove bolt which installs injector pipe to in- (2) Remove fuel injector while lifting up fuel in- take manifold. jector pipe. H2M2994 H2M3241 B: INSTALLATION 1. RH SIDE Install in the reverse order of removal. CAUTION: Replace O-rings with new ones.
  • Page 41 FUEL INJECTOR FUEL INJECTION (FUEL SYSTEMS) Tightening torque: 2. LH SIDE 19 N·m (0.19 kgf-m, 1.4 ft-lb) Install in the reverse order of removal. CAUTION: Replace O-rings with new ones. B2M4132 Tightening torque: 19 N·m (1.9 kgf-m, 13.7 ft-lb) B2M3372A (A) O-ring (B) Fuel injector (C) Intake manifold protector...
  • Page 42 FUEL INJECTOR FUEL INJECTION (FUEL SYSTEMS) Tightening torque: 19 N·m (1.9 kgf-m, 13.7 ft-lb) B2M4133 Tightening torque: 19 N·m (1.9 kgf-m, 13.7 ft-lb) B2M4129 FU(SOHCw/oOBD)-41...

  • Page 43: Oxygen Sensor

    Tightening torque: 21 N·m (2.1 kgf-m, 15.2 ft-lb) B2M3108 3) Lift-up the vehicle. 4) Apply SUBARU CRC or its equivalent to thread- ed portion of oxygen sensor, and leave it for one minute or more. SUBARU CRC (Part No. 004301003) 5) Remove oxygen sensor.
  • Page 44 OXYGEN SENSOR FUEL INJECTION (FUEL SYSTEMS) 5) Connect battery ground cable. G6M0095 FU(SOHCw/oOBD)-43...

  • Page 45: Engine Control Module

    ENGINE CONTROL MODULE FUEL INJECTION (FUEL SYSTEMS) 13.Engine Control Module B: INSTALLATION Install in the reverse order of removal. A: REMOVAL CAUTION: 1) Disconnect battery ground cable. When replacing ECM, be careful not to use the wrong spec. ECM to avoid any damage to the fuel injection system.

  • Page 46: Main Relay

    MAIN RELAY FUEL INJECTION (FUEL SYSTEMS) 14.Main Relay A: REMOVAL 1) Disconnect battery ground cable. G6M0095 2) Remove passenger’s side front side sill cover. 3) Remove bolt which holds main relay bracket on body. 4) Disconnect connectors from main relay. EN0534 B: INSTALLATION Install in the reverse order of removal.

  • Page 47: Fuel Pump Relay

    FUEL PUMP RELAY FUEL INJECTION (FUEL SYSTEMS) 15.Fuel Pump Relay A: REMOVAL 1) Disconnect battery ground cable. G6M0095 2) Remove passenger’s side front side sill cover. 3) Remove bolt which holds fuel pump relay brack- et on body. 4) Disconnect connector from fuel pump. EN0535 5) Remove fuel pump relay from mounting bracket.

  • Page 48: Fuel

    FUEL FUEL INJECTION (FUEL SYSTEMS) 16.Fuel 5) Tighten fuel drain plug. Tightening torque: A: OPERATION 26 N·m (2.65 kgf-m, 19.2 ft-lb) 1. RELEASING OF FUEL PRESSURE WARNING: • Place “NO FIRE” signs near the working area. • Be careful not to spill fuel on the floor. 1) Disconnect connector from fuel pump relay.

  • Page 49: Fuel Tank

    FUEL TANK FUEL INJECTION (FUEL SYSTEMS) 17.Fuel Tank 10) Move clips, and disconnect quick connector. <Ref. to FU(SOHCw/oOBD)-60, REMOVAL, Fuel A: REMOVAL Delivery, Return and Evaporation Lines.> 11) Disconnect fuel hoses. WARNING: • Place “NO FIRE” signs near the working area. •...
  • Page 50 FUEL TANK FUEL INJECTION (FUEL SYSTEMS) 3) Connect two-way valve hose (A) to two-way 6) Tighten band mounting bolts. valve and connect canister hose (B) to canister. Tightening torque: 33 N·m (3.4 kgf-m, 25 ft-lb) EN0840 4) Connect fuel filler hose (A) and air vent hose (B). EN0541 7) Install rear crossmember.

  • Page 51: Fuel Filler Pipe

    FUEL FILLER PIPE FUEL INJECTION (FUEL SYSTEMS) 18.Fuel Filler Pipe 8) Drain fuel from fuel tank. Set a container under the vehicle and remove drain plug from fuel tank. A: REMOVAL WARNING: • Place “NO FIRE” signs near the working area. •...
  • Page 52 FUEL FILLER PIPE FUEL INJECTION (FUEL SYSTEMS) 12) Disconnect air vent hose from fuel filler pipe. B: INSTALLATION 1) Hold fuel filler flap open. 2) Set fuel saucer (A) with rubber packing (C) and insert fuel filler pipe into hole from the inner side of apron.
  • Page 53 FUEL FILLER PIPE FUEL INJECTION (FUEL SYSTEMS) 6) Insert fuel filler hose (A) approximately 35 to 40 9) Tighten bolts which hold evaporation hoses onto mm (1.38 to 1.57 in) over the lower end of fuel filler clip of fuel filler pipe. pipe and tighten clamp.
  • Page 54 FUEL FILLER PIPE FUEL INJECTION (FUEL SYSTEMS) 15) Connect battery ground terminal. G6M0095 FU(SOHCw/oOBD)-53...

  • Page 55: Fuel Pump

    FUEL PUMP FUEL INJECTION (FUEL SYSTEMS) 19.Fuel Pump 8) Remove access hole lid. A: REMOVAL WARNING: • Place “NO FIRE” signs near the working area. • Be careful not to spill fuel on the floor. NOTE: Fuel pump assembly consists of fuel pump and fuel level sensor.
  • Page 56 FUEL PUMP FUEL INJECTION (FUEL SYSTEMS) B: INSTALLATION Install in the reverse order of removal. Do the fol- lowing: (1) Always use new gaskets. (2) Ensure sealing portion is free from fuel or for- eign particles before installation. (3) Tighten nuts in alphabetical sequence shown in figure to specified torque.

  • Page 57: Fuel Level Sensor

    FUEL LEVEL SENSOR FUEL INJECTION (FUEL SYSTEMS) 20.Fuel Level Sensor B: INSTALLATION Install in the reverse order of removal. A: REMOVAL WARNING: • Place “NO FIRE” signs near the working area. • Be careful not to spill fuel on the floor. NOTE: Fuel level sensor is built in fuel pump assembly.

  • Page 58: Fuel Filter

    FUEL FILTER FUEL INJECTION (FUEL SYSTEMS) 21.Fuel Filter A: REMOVAL WARNING: • Place “NO FIRE” signs near the working area. • Be careful not to spill fuel on the floor. 1) Release fuel pressure. <Ref. to FU(SOHCw/ oOBD)-47, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.>...

  • Page 59: Fuel Cut Valve

    FUEL CUT VALVE FUEL INJECTION (FUEL SYSTEMS) 22.Fuel Cut Valve A: REMOVAL WARNING: • Place “NO FIRE” signs near the working area. • Be careful not to spill fuel on the floor. • During work procedures, if fuel tank is more than 3/4 full, be careful because fuel may spill.

  • Page 60: Fuel Damper Valve

    FUEL DAMPER VALVE FUEL INJECTION (FUEL SYSTEMS) 23.Fuel Damper Valve A: REMOVAL 1) Release fuel pressure. <Ref. to FU(DOHC TUR- BO)-49, RELEASING OF FUEL PRESSURE, OP- ERATION, Fuel.> 2) Remove fuel damper valve from fuel return line. EN0852 B: INSTALLATION Install in the reverse order of removal.

  • Page 61: Fuel Delivery, Return And Evaporation Lines

    FUEL DELIVERY, RETURN AND EVAPORATION LINES FUEL INJECTION (FUEL SYSTEMS) 24.Fuel Delivery, Return and 3) Open fuel filler flap lid and remove fuel filler cap. 4) Remove floor mat. <Ref. to EI-37, REMOVAL, Evaporation Lines Floor Mat.> 5) Remove fuel delivery pipes and hoses, fuel re- A: REMOVAL turn pipes and hoses, evaporation pipes and hos- 1) Set vehicle on the lift.
  • Page 62 FUEL DELIVERY, RETURN AND EVAPORATION LINES FUEL INJECTION (FUEL SYSTEMS) CAUTION: CAUTION: Replace retainer with new ones. • Pull the connector to ensure it is connected securely. • Ensure the two retainer pawls are engaged in their mating positions in the connector. •...
  • Page 63 FUEL DELIVERY, RETURN AND EVAPORATION LINES FUEL INJECTION (FUEL SYSTEMS) 3) Connect evaporation hose to pipe by approx. 15 mm (0.59 in) from hose end. L = 17.5 ± ± ± ± 2.5 mm (0.689 ± ± ± ± 0.098 in) CAUTION: Be sure to inspect hoses and their connections for any leakage of fuel.

  • Page 64: Fuel System Trouble In General

    FUEL SYSTEM TROUBLE IN GENERAL FUEL INJECTION (FUEL SYSTEMS) 25.Fuel System Trouble in Gen- eral A: INSPECTION Trouble and possible cause Corrective action 1. Insufficient fuel supply to the injector Fuel pump will not operate. Inspect connections, especially ground, and tighten Defective terminal contact.
  • Page 65 FUEL SYSTEM TROUBLE IN GENERAL FUEL INJECTION (FUEL SYSTEMS) FU(SOHCw/oOBD)-64...

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