Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-4
Targeted Timing Varying Operation
Diagnostic Information and Procedures
Compression CheckS7RS0B1404001
Check compression pressure on all 4 cylinders as
follows:
1) Warm up engine to normal operating temperature.
2) Stop engine after warming up.
NOTE
After warming up engine, place transaxle
gear shift lever in “Neutral”, and set parking
brake and block drive wheels.
3) Disconnect negative cable at battery.
4) Remove engine cover.
5) Remove air cleaner assembly and air suction hose referring to “Air Cleaner Components”.
6) Remove cylinder head upper cover.
7) Disconnect ignition coil couplers (1).
8) Remove ignition coil assemblies (2) with high- tension cord (3).
9) Remove all spark plugs.
10) Disconnect fuel injector wires (4) at the coupler. Driving condition Valve timing Target of control Effect
Engine running at idle
speed Most retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to in
take manifold. Stabilization of the engine
rotation at idle speed.
Average engine load
range To the advanced
sideTo lengthen the valve opening overlap
in order to enhance the internal
exhaust gas recirculation and reduce
the pumping loss. Improvement of the fuel
efficiency.
Lowering of the exhaust
emission.
Light engine load
range To the retarded sideTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to in
take manifold. Keeping of the engine stability.
Low or average
engine speed range
with heavy engine
load To the advanced
side
To advance the closing timing of the
intake valve in order to improve the
volumetric efficiency. Improvement of generating the
engine torque at low and
average engine speed.
High engine speed
range with heavy
engine load To the retarded sideTo retard the closing timing of the
intake valve in order to improve the
volumetric efficiency. Improvement of generating the
engine power.
Low engine coolant
temperature Most retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold and
reduce the fuel increasing.
To slow the fast idle speed of the
engine as a result of stabilizing the
engine idling. Stabilization of the fast idling of
the engine.
Improvement of the fuel
efficiency.
At engine starting and
stopping Most retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to in
take manifold. Improvement of start ability.I2RH0B140003-01
Downloaded from www.Manualslib.com manuals search engine 1D-5 Engine Mechanical:
11) Connect negative cable at battery.
12) Install special tools (Compression gauge) into spark plug hole.
Special tool
(A): 09915–64512
(B): 09915–64530
(C): 09915–67010
13) Disengage clutch (1) (to lighten starting load on engine) for M/T vehicle, and depress accelerator
pedal (2) all the way to make throttle fully open.
14) Crank engine with fully charged battery, and read the highest pressure on compression gauge.
NOTE
• For measuring compression pressure, crank engine at least 250 r/min. by using
fully charged battery.
• If measured compression pressure is lower than limit value, check installation
condition of special tool. If it is properly
installed, possibility is compression
pressure leakage from where piston ring
and valve contact.
Compression pressure
Standard: 1400 kPa (14.0 kg/cm2, 199.0 psi)
Limit: 1100 kPa (11.0 kg/cm2, 156.0 psi)
Max. difference between any two cylinders: 100
kPa (1.0 kg/cm
2, 14.2 psi) 15) Carry out Steps 12) through 14) on each cylinder to
obtain 4 readings.
16) Disconnect negative cable at battery.
17) After checking, install spark plugs and ignition coil assemblies (2) with high-tension cord (3).
18) Connect ignition coil couplers (1).
19) Connect fuel injector wires (4) at the coupler.
20) Install cylinder head upper cover.
21) Install air cleaner assembly and air suction hose referring to “Air Cleaner Components”.
22) Install engine cover.
23) Connect negative cable at battery.
Engine Vacuum CheckS7RS0B1404002
The engine vacuum that develops in the intake line is a
good indicator of the condition of the engine. The
vacuum checking procedure is as follows:
1) Warm up engine to normal operating temperature.
NOTE
After warming up engine, be sure to place
transaxle gear shift lever in “Neutral”, and set
parking brake and block drive wheels.
2) Stop engine and turn off the all electric switches.
3) Remove engine cover.
4) Remove air cleaner assembly and air suction hose referring to “Air Cleaner Components”.
5) Remove PCV hose (1) from PCV valve (2).
(A)
(C)
(B)
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I2RH0B140005-01
I2RH0B140003-01
2
1
I6RS0B141001-01
Downloaded from www.Manualslib.com manuals search engine 1D-17 Engine Mechanical:
Engine Assembly Removal and InstallationS7RS0B1406011
NOTE
After replacing electric throttle body
assembly, perform calibration of throttle
valve referring to “Electric Throttle Body
System Calibration in Section 1C”.
Removal1) Relieve fuel pressure according to “Fuel Pressure Relief Procedure in Section 1G”.
2) Disconnect negative and pos itive cable at battery.
3) Remove battery and tray.
4) Remove engine hood after disconnecting windshield washer hose.
5) Remove right and left side engine under covers.
6) Remove A/C compressor belt by referring to “Compressor Drive Belt Remo val and Installation in
Section 7B” or “Compressor Drive Belt Removal and
Installation in Section 7B”.
7) Drain engine oil, transaxle oil and coolant.
8) Remove cowl top plate referring to “Cowl Top Components in Section 9K”.
9) Remove air cleaner assembly referring to “Air Cleaner Components”.
10) With hose connected, detach A/C compressor from its bracket (A/C model) referring to “Compressor
Assembly Removal and Installation in Section 7B” or
“Compressor Assembly Removal and Installation in
Section 7B”.
CAUTION!
Suspend removed A/C compressor at a place
where no damage will be caused during
removal and installation of engine assembly.
11) Remove intake manifold rear stiffener (1) from intake manifold and cylinder block. 12) Disconnect the following electric wires:
• MAP sensor (1)
• ECT sensor (2)
•EGR valve (3)
• CMP sensor (4)
• Electric throttle body assembly (5)
• Ignition coil assembly (6)
• Injectors (7)
• Heated oxygen sensor No. 2 (8) and No. 1 (9)
• Oil control valve (10)
• Engine oil pressure switch (11)
• CKP sensor (12)
• Knock sensor (13)
• Back up light switch (14)
• Generator (15)
• Starting motor (16)
• Ground terminal (17) from intake manifold
• Battery ground terminal (18) from exhaust manifold
• Battery ground cable (19) from transaxle
• Magnet clutch switch of A/C compressor (A/C model)
• Each wire harness clamps
• Output shaft speed sensor (VSS) (34) (A/T model)
• Solenoid valve (33) (A/T model)
• Transmission range sensor (32) (A/T model)
• Input shaft speed sensor (31) (A/T model)
13) Remove fuse box from its bracket.
14) Disconnect the following cables: • Gear select control cable (23) (M/T model)
• Gear shift control cable (24) (M/T model)
• A/T select cable (A/T model)
15) Disconnect the following hoses: • Brake booster hose (26) from intake manifold
• Radiator inlet and outlet hoses (20) from each pipe
• Heater inlet and outlet hoses (21) from each pipe
• Fuel feed hoses (22) from fuel feed pipe
• EVAP canister purge valve hose (30) from purge pipe
• A/T fluid cooler hoses (A/T model)
16) With hose connected, detach clutch operating cylinder (25). (M/T model)
CAUTION!
Suspend removed clutch operating cylinder
at a place where no damage will be caused
during removal and installation of engine
assembly.
1
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Downloaded from www.Manualslib.com manuals search engine 1D-19 Engine Mechanical:
24) Before removing engine with transaxle from engine compartment, recheck to make sure all hoses,
electric wires and cables are disconnected from
engine and transaxle.
25) Lower engine with transaxle from engine compartment.
CAUTION!
Before lowering engine, to avoid damage to
A/C compressor and clutch operating
cylinder, make clearance by rising them. Be
sure not to damage suspended A/C
compressor and clutch operating cylinder.
26) Disconnect transaxle from engine, referring to “Manual Transaxle Unit Dismounting and
Remounting in Section 5B” or “Automatic Transaxle
Unit Dismounting and Re mounting in Section 5A”.
27) For M/T model, remove clutch cover and clutch disk referring to “Clutch Cover, Clutch Disc and Flywheel
Removal and Installa tion in Section 5C”.
Installation 1) For M/T model, install clutch cover and clutch disk referring to “Clutch Cover, Clutch Disc and Flywheel
Removal and Installa tion in Section 5C”.
2) Connect transaxle to engine referring to “Manual Transaxle Unit Dismounting and Remounting in
Section 5B” or “Automatic Transaxle Unit
Dismounting and Remounting in Section 5A”.
3) Lift engine and transaxle into engine compartment with jack.
4) Install engine left mounting bracket nuts (1) and engine right mounting nuts (2).Tighten these nuts to
specified torque.
Tightening torque
Engine left mounting bracket nut (a): 55 N·m (5.5
kgf-m, 40.0 lb-ft)
Engine right mounting nut (b): 65 N·m (6.5 kgf-
m, 47.0 lb-ft) 5) Support engine assemble by using chain hoist.
6) Install engine rear mounting to engine rear
mountingNo.1 bracket.
Tightening torque
Engine rear mounting bush bolt: 55 N·m (5.5
kgf-m, 40.0 lb-ft)
7) Install suspension frame referring to “Front Suspension Frame, Stabiliz er Bar and/or Bushings
Removal and Installati on in Section 2B”.
8) Remove chain hoist.
9) Install exhaust No.1, No.2 and center pipes referring to “Exhaust Pipe and Muffler Removal and
Installation in Section 1K”.
10) Connect drive shaft joints referring to “Front Drive Shaft Assembly Removal and Installation in Section
3A”.
11) Reverse disconnected hoses, cables and electric wires for connection noting the followings.
• Tighten nuts to specified torque.
Tightening torque
Starting motor terminal nut: 11 N·m (1.1 kgf-m,
8.0 lb-ft)
Generator terminal nut: 6 N·m (0.6 kgf-m, 4.5 lb-
ft)
Intake manifold ground terminal bolt: 11 N·m (
1.1 kgf-m, 18.0 lb-ft)
12) Install intake manifold rear stiffener to intake
manifold and cylinder block.
13) Install air cleaner assembly referring to “Air Cleaner Components”.
14) Install cowl top referring to “Cowl Top Components in
Section 9K”.
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1, (a)
2, (b)
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Downloaded from www.Manualslib.com manuals search engine 1H-8 Ignition System:
Ignition Coil Assembly (Including ignitor)
Removal and Installation
S7RS0B1806005
Removal1) 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 igni tion coil coupler.
Tightening torque
Ignition coil bolt (a): 10 N·m (1.0 kgf-m, 7.5 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
S7RS0B1806006
Measure secondary coil for resistance.
If resistance is out of specification, replace ignition coil
assembly.
Secondary coil resistance
7.5 – 10.3 k Ω at 20 °C, 68 ° F
Ignition Timing InspectionS7RS0B1806007
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” (shift selector
lever to “P” range for A/T model), and set
parking brake.
1) Connect scan tool to DLC (1) with ignition switch OFF.
Special tool
(A): SUZUKI scan tool
2) Start engine and warm it up to normal operating temperature.
3) Make sure that all of electrical loads except ignition are switched off.
4) Check to be sure that idle speed is within specification referring to “Idle Speed and IAC
Throttle Valve Opening Inspection in Section 1A”
5) Fix ignition timing by using “Fixed Spark” of “Misc Test” mode on scan tool.
I2RH0B180006-01
I3RM0A180004-01
I2RH0B180007-01
(A)
1
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