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6) Start engine and run it until engine stops for lack of
fuel. Repeat cranking engine 2 – 3 times for about 3
seconds each time in order to dissipate fuel pressure
in lines. Fuel connections are now safe for servicing.
7) After servicing, connect fuel pump relay (1) to relay /
fuse box and install relay / fuse box cover.
Fuel Leakage Check ProcedureS6RW0D1706004
After performing any service on fuel system, check to
make sure that there are no fuel leakages as follows.
1) Turn ON ignition switch for 3 seconds (to operate
fuel pump) and then turn it OFF.
Repeat this (ON and OFF) 3 or 4 times and apply
fuel pressure to fuel line until fuel pressure is felt by
hand placed on fuel feed hose.
2) In this state, check to see that there are no fuel
leakages from any part of fuel system.
Fuel Lines On-Vehicle InspectionS6RW0D1706005
CAUTION!
Due to the fact that fuel feed line (1) is under
high pressure, use special care when
servicing it.
Visually inspect fuel lines for evidence of fuel leakage,
hose crack and deterioration or damage.
Make sure all clamps are secure.
Replace parts as needed.
Fuel Pipe Removal and InstallationS6RW0D1706006
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.
Removal
1) Relieve fuel pressure in fuel feed line according to
“Fuel Pressure Relief Procedure”.
2) Disconnect negative cable at battery.
3) Disconnect fuel hose (3) from fuel pipe (2) at the
front and rear of each fuel pipe referring to “Fuel
Hose Disconnecting and Reconnecting”.
4) Mark the location of clamps (1) on fuel pipes (2), so
that the clamps can be reinstalled to where they
were.
5) Remove clamps (1) from vehicle body, fuel pipes and
brake pipes.
CAUTION!
Be careful not to bent and damage fuel pipes
and brake pipes when removing clamp.
6) Remove fuel pipe (2).
Installation
1) Install clamps to marked location on pipes. If clamp
is deformed, its claw is bent or broken, replace it with
new one.
2) Install pipes with pipe clamps to vehicle.
3) Connect fuel hoses and pipes to each pipe referring
to “Fuel Hose Disconnecting and Reconnecting”.
4) Connect negative cable at battery.
5) With engine OFF, turn ignition switch to ON position
and check for fuel leaks.
1
2
I5RW0A170007-01
1
I5RW0A170008-01
2
3
1
I5RW0A170009-01
Downloaded from www.Manualslib.com manuals search engine 1G-9 Fuel System:
Fuel Injector On-Vehicle InspectionS6RW0D1706007
1) Using sound scope (1) or such, check operating
sound of injector (2) when engine is running or
cranking.
Cycle of operating sound should vary according to
engine speed.
If no sound or an unusual sound is heard, check
injector circuit (wire or coupler) or injector.
2) Disconnect connector (1) from injector, connect
ohmmeter between terminals of injector and check
resistance.
If resistance is out of reference value greatly,
replace.
Reference resistance of fuel injector
12.0 Ω at 20 °C, 68 °F
3) Connect connector to injector securely.
Fuel Injector Removal and InstallationS6RW0D1706008
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.
Removal
1) Relieve fuel pressure according to “Fuel Pressure
Relief Procedure”.
2) Disconnect negative cable at battery.
3) Remove air cleaner case (1) and air suction hose
(2).
4) Disconnect fuel injector couplers.
5) Disconnect fuel feed hose (4) from fuel delivery pipe
(1).
6) Remove fuel delivery pipe bolts (2).
7) Remove fuel injector(s) (3).
I2RH0B170007-01
I2RH0B170008-01
1
2
I5RW0A140002-01
2
1
4
3
3
I5RW0A170010-01
Downloaded from www.Manualslib.com manuals search engine 1G-13 Fuel System:
Fuel Tank Removal and InstallationS6RW0D1706011
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.
Removal
1) Relieve fuel pressure in fuel feed line according to
“Fuel Pressure Relief Procedure”.
2) Disconnect negative cable at battery.
3) Remove fuel filler cap.
4) Insert hose of a hand operated pump into fuel filler
hose (1) and drain fuel in space “A” as shown in
figure.
CAUTION!
Do not force pump hose into fuel tank.
5) Hoist vehicle, and remove clamp (2), fuel filler hose
(1) and breather hose (3) from fuel filler neck.6) Remove exhaust center pipe referring to “Exhaust
Pipe and Muffler Removal and Installation in Section
1K”.
7) Remove propeller shaft (For 4WD model) referring to
“Propeller Shaft Assembly Removal and Installation
in Section 3D”.
8) Due to absence of fuel tank drain plug, drain fuel
tank by pumping fuel out through fuel tank filler.
Use hand operated pump device to drain fuel tank.
CAUTION!
• Do not force pump hose into fuel tank.
• Never store fuel in an open container due
to possibility of fire or explosion.
9) Disconnect quick joint (fuel pipe) (1) from fuel pipes
(2) referring to “Fuel Hose Disconnecting and
Reconnecting”.
10) Support fuel tank (1) with jack (2) and remove its
mounting bolts (3).
11) Lower fuel tank a little as to disconnect wire harness
at connector (1)and ground wire (2), then remove
fuel tank.
2. Inlet check valve
I4RS0B170022-01
1 23
I5RW0A170012-01
2
1
I5RW0A170014-02
1
2
33
I5RW0A170013-01
1
2
I7RW01170009-01
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Installation
CAUTION!
• When connecting joint, clean outside
surfaces of pipe where joint is to be
inserted, push joint into pipe till joint lock
clicks and check to ensure that pipes are
connected securely, or fuel leak may
occur.
• Never let the fuel hoses touch the ABS
sensor harness (if equipped).
1) If parts have been removed from fuel tank, install
them before installing fuel tank to vehicle.
2) Raise fuel tank (1) with jack (2) and connect fuel
pump connector (3), ground wire (4) and clamp wire
harness.
Tightening torque
Ground wire bolt (a): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
3) Install fuel tank to vehicle.
Tightening torque
Fuel tank bolt (b): 45 N·m (4.5 kgf-m, 33.0 lb-ft)4) Connect fuel filler hose (1) and breather hose (2) to
filler neck (3) as shown in figure, and clamp them
securely.
Tightening torque
Fuel filler hose clamp (a): 1.5 N·m (0.15 kgf-m,
1.0 lb-ft)
5) Connect fuel feed hose (1) and vapor hose (2) to
each pipe as shown in figure, and clamp them
securely.
6) Install exhaust center pipe referring to “Exhaust Pipe
and Muffler Removal and Installation in Section 1K”.
7) Install propeller shaft (For 4WD model) referring to
“Propeller Shaft Assembly Removal and Installation
in Section 3D”.
8) Connect negative cable at battery.
9) With engine OFF, turn ignition switch to ON position
and check for fuel leaks.
Fuel Tank InspectionS6RW0D1706012
After removing fuel tank, check hoses and pipes
connected to fuel tank for leaks, loose connections,
deterioration or damage. Also check fuel pump
assembly gaskets for leaks, visually inspect fuel tank for
leaks and damage.
Replace any damaged or malconditioned parts.
(b)(b)
1
2
3
4
(a)
I7RW01170010-01
1(a)2
3
I5RW0A170017-01
1
2
I5RW0A170018-01
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Special Tools and Equipment
Special ToolS6RW0D1708001
09912–57610 09912–58421
Injector checking tool plate Checking tool set
)This kit includes the
following items. 1. Tool body
and washer, 2. Body plug, 3.
Body attachment-1, 4.
Holder, 5. Return hose and
clamp, 6. Body attachment-2
and washer, 7. Hose
attachment-1, 8. Hose
attachment-2 )
09912–58432 09912–58442
Fuel pressure gauge hose Fuel pressure gauge
This tool is included in fuel
pressure gauge set (09912-
58413). )This tool is included in fuel
pressure gauge set (09912-
58413). )
09912–58490 09919–47020
3-way joint & hose Quick joint remover
) )
09930–88530 SUZUKI scan tool (SUZUKI-
SDT)
Injector test lead —
)This kit includes following
items. 1. SUZUKI-SDT 2.
DLC3 cable 3. USB cable 4.
AC/DC power supply 5.
Voltage meter probe 6.
Storage case )
1
2
34
56
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Diagnostic Information and Procedures
Ignition System Symptom DiagnosisS6RW0D1804001
Reference Waveform of Ignition SystemS6RW0D1804002
Refer to “Reference waveform No.5”, “Reference waveform No.6” and “Reference waveform No.7” under “Inspection
of ECM and Its Circuits in Section 1A” for waveform of Ignition trigger signal.
Ignition System CheckS6RW0D1804003
Condition Possible cause Correction / Reference Item
Engine cranks, but will
not start or hard to start
(No spark)Blown fuse for ignition coilReplace.
Loose connection or disconnection of
lead wire or high-tension cord(s)Connect securely.
Faulty high-tension cord(s)Replace.
Faulty spark plug(s)Replace.
Faulty ignition coilReplace ignition coil assembly.
Faulty CKP sensor or CKP sensor plateClean, tighten or replace.
Faulty CMP sensor or sensor rotor tooth
of camshaftClean, tighten or replace.
Faulty ECMReplace.
Poor fuel economy or
engine performanceIncorrect ignition timingCheck related sensors and CKP sensor plate.
Faulty spark plug(s) or high-tension
cord(s)Adjust, clean or replace.
Faulty ignition coil assemblyReplace.
Faulty CKP sensor or CKP sensor plateClean, tighten or replace.
Faulty CMP sensor or sensor rotor tooth
of camshaftClean, tighten or replace.
Faulty knock sensorReplace.
Faulty ECMReplace.
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check in
Section 1A”.
2Ignition spark test
1) Check all spark plugs for condition and type referring to
“Spark Plug Inspection”.
2) If OK, perform ignition spark test referring to “Ignition
Spar k Tes t”.
Is spark emitted from all spark plugs?Go to Step 12. Go to Step 3.
3DTC check
1) Perform DTC check referring to “DTC Check in Section
1A”.
Is DTC stored in ECM?Go to applicable DTC
diag. flow.Go to Step 4.
4Electrical connection check
1) Check ignition coil assemblies and high-tension cords
for electrical connection.
Are they connected securely?Go to Step 5. Connect securely.
5High-tension cords check
1) Check high-tension cord for resistance referring to
“High-Tension Cord Inspection”.
Is check result satisfactory?Go to Step 6. Replace high-tension
cord(s).
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Ignition Coil Assembly (Including Ignitor)
Removal and Installation
S6RW0D1806005
Removal
1) Disconnect negative cable at battery.
2) Remove air cleaner assembly with air intake pipe
and cylinder head upper cover.
3) Disconnect ignition coil coupler.
4) Disconnect high-tension cord (3) from ignition coil
assembly (2).
5) Remove ignition coil bolts (1) and then pull out
ignition coil assembly.
Installation
1) Install ignition coil assembly (2).
2) Tighten ignition coil bolts (1) to specified torque, and
then connect ignition coil coupler.
Tightening torque
Ignition coil bolt (a): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
3) Install high-tension cord (3) to ignition coil assembly
while gripping its cap.
4) Install cylinder head upper cover and air cleaner
assembly with air intake pipe.
5) Connect negative cable to battery.
Ignition Coil Assembly (Including Ignitor)
Inspection
S6RW0D1806006
Measure secondary coil for resistance.
If resistance is out of specification, replace ignition coil
assembly.
Secondary coil resistance
7.6 – 10.2 kΩ at 20 ° (68 °F)
Ignition Timing InspectionS6RW0D1806007
NOTE
• Ignition timing is not adjustable. If ignition
timing is out of specification, check
system related parts.
• Before starting engine, place transmission
gear shift lever in “Neutral”, and set
parking brake.
1) Connect scan tool to DLC (1) with ignition switch
OFF.
Special tool
(A): SUZUKI scan tool (SUZUKI-SDT)
I2RH0B180006-01
I3RM0A180004-01
I2RH0B180007-01
(A) 1I 5 R W 0 C 11 0 0 11 - 0 1
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Specifications
Tightening Torque SpecificationsS6RW0D1807001
Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
Special Tools and Equipment
Special ToolS6RW0D1808001
Fastening partTightening torque
Note
N⋅mkgf-mlb-ft
Spark plug 25 2.5 18.0 )
Ignition coil bolt 11 1.1 8.0 )
09930–76420 SUZUKI scan tool (SUZUKI-
SDT)
Timing-light (dry cell type) —
)This kit includes following
items. 1. SUZUKI-SDT 2.
DLC3 cable 3. USB cable 4.
AC/DC power supply 5.
Voltage meter probe 6.
Storage case )
1
2
34
56