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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Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-14
Throttle Body CleaningS7RS0B1406008
Clean electric throttle body assembly referring to
“Throttle Valve Visual Check” under “Electric Throttle
Body Assembly On-Vehicle Inspection in Section 1C”.
Intake Manifold Removal and InstallationS7RS0B1406009
Removal1) Remove cowl top plate referring to “Cowl Top Components in Section 9K”.
2) Remove throttle body referring to “Electric Throttle Body Assembly Removal and Installation”.
3) Disconnect MAP sensor coupler (1).
4) Disconnect the following hoses: • Brake booster hose (2) from cylinder head cover
• Breather hose (3) from cylinder head cover
• PCV hose (4) from intake manifold
• EVAP canister purge valve hose (5) from intake manifold
5) Remove hose clamp (6) from intake manifold.
6) Remove EGR pipe bolt (7) from EGR valve. 7) Remove stiffener (1) and ground terminal (2) from
intake manifold.
8) Remove intake manifold (1) with EGR pipe (2) from
cylinder head, and then remove their gaskets (3).
9) Remove EGR pipe from intake manifold, if necessary.
6
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3
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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.
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Downloaded from www.Manualslib.com manuals search engine Engine Lubrication System: 1E-3
6) Start engine and warm engine up to normal operating temperature.
NOTE
Be sure to shift transaxle gear shift lever in
“Neutral” (shift select lever in “P” range for
A/T vehicle), set parking brake and block
drive wheels.
7) After warming up, raise engine speed to 4,000 r/min. and measure oil pressure.
Oil pressure specification
More than 270 kPa (2.7 kg/cm2, 39.8 psi) at 4,000
r/min. (rpm)
8) After checking oil pressure, stop engine and remove oil pressure gauge and attachment.
9) Before reinstalling oil pressure switch (2), be sure to
wrap its screw threads with sealing tape (1) and
tighten switch to specified torque.
NOTE
If sealing tape edge is bulged out from screw
threads of switch, cut it off.
Tightening torque
Oil pressure switch (a): 13 N·m (1.3 kgf-m, 9.5
lb-ft) 10) Start engine and check oil pressure switch for oil
leakage. If oil leakage is found, repair it.
11) Connect oil pressure switch coupler (1).
Repair Instructions
Heat Exchanger ComponentsS7RS0B1506001
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3
4
5
7
6
(a)
2
1
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1. Heat exchanger inlet No. 1 hose 4. Gasket7. O-ring
: Apply engine oil.
2. Heat exchanger outlet No. 1 hose 5. Heat exchanger stand bolt : 22 N⋅m (2.2 kgf-m, 16.0 lb-ft)
3. Heat exchanger 6. Oil filter adapter case : Do not reuse.
Downloaded from www.Manualslib.com manuals search engine 1G-3 Fuel System:
4) Check that battery voltage is 11 V or more.
5) Measure fuel pressure at each condition.If measured pressure is out of specification, refer to
“Fuel Pressure Check in Section 1A” and check each
possibly defective part. Replace if found defective.
a) Turn ignition switch ON to operate fuel pump and after 2 seconds turn it OFF. Repeat this 3 or 4
times and then check fuel pressure.
Fuel pressure specification
With fuel pump operating and engine
stopped: 270 – 310 kPa (2.7 – 3.1 kg/cm2, 38.4
– 44.0 psi)
b) Start engine and warm it up to normal operating temperature, and measure fuel pressure at
idling.
Fuel pressure specification
At specified idle speed: 270 – 310 kPa (2.7 –
3.1 kg/cm2, 38.4 – 44.0 psi)
c) Stop engine, and measure fuel pressure at one minute after stopping.
Fuel pressure specification
With 1 min. after engine (fuel pump) stop
(Pressure reduces as time passes): Over 300
kPa (3.0 kg/cm
2, 42.7 psi)
6) After checking fuel pressure, remove fuel pressure gauge.
WARNING!
As fuel feed line is still under high fuel
pressure, make sure to release fuel pressure
according to the following procedures.
• Place fuel container under joint.
• Cover joint with rag and loosen joint nut slowly in order to release fuel pressure
gradually.
7) Remove special tools from fuel delivery pipe and fuel feed hose.
8) Connect fuel feed hose to fuel delivery pipe and clamp it securely.
9) With engine OFF and ignition switch ON, check for fuel leaks.
Fuel Cut Operation InspectionS7RS0B1704002
NOTE
Before inspection, make sure that gear shift
lever is in neutral positi on (shift select lever
is “P” range for A/T vehicle), A/C is OFF and
parking brake lever is pulled all the way up.
1) Warm engine up to normal operating temperature.
2) While listening to sound of injector (2) by using sound scope (1) or such, increase engine speed to
higher than 3,000 r/min.
3) Check to make sure that injector operation sound is stop when throttle valve is closed instantly and it is
heard again when engine speed is reduced to
approx. 2,000 r/min or less.
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Fuel Pressure Relief ProcedureS7RS0B1706003
CAUTION!
This work must not be done when engine is
hot. If done so, it may cause adverse effect to
catalyst.
NOTE
If ECM detects DTC(s) after servicing, clear
DTC(s) referring to “DTC Clearance in
Section 1A”.
1) Make sure that engine is cold.
2) Shift transaxle gear shift lever in “Neutral” (shift select lever in “P” range for A/T model), set parking
brake and block drive wheels.
3) Remove relay / fuse box cover.
4) Disconnect fuel pump relay (1) from relay / fuse box (2).
5) Remove fuel filter cap in order to release fuel vapor pressure in fuel tank, and then reinstall it.
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 re lay / fuse box cover.
Fuel Leakage Check ProcedureS7RS0B1706004
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 InspectionS7RS0B1706005
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 cl amps are secure.
Replace parts as needed.
Fuel Pipe Removal and InstallationS7RS0B1706006
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk or 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 pipe joint and 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 pipes (2) with clamp (1) from vehicle.
6) Remove clamp (1) from pipes (2).
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Downloaded from www.Manualslib.com manuals search engine 2B-5 Front Suspension:
5) Remove brake hose mounting bolt (1) and remove brake hose (2) from bracket and then wheel speed
sensor harness (3) from strut bracket as shown in
figure.
6) Remove strut bracket bolts and nuts (4).
7) Remove strut rod cap.
8) Remove strut nut (1), and remove rebound stopper (2).
NOTE
Hold strut by hand so th at it will not fall off.
9) Remove strut assembly.
Installation
Install strut assembly by reversing removal procedure,
noting the following instructions.
CAUTION!
Never reuse strut bracket nuts.
Nuts are pre-coated with friction stabilizer.
Be sure to replace pre-coated nut with a new
one, or nut may loosen.
• Insert bolts in such direction as shown in figure.
• Tighten all fasteners to specified torque. Tightening torque
Strut bracket nut (a): 90 N·m (9.0 kgf-m, 65.5 lb-ft)
Brake hose mounting bolt (c): 25 N·m (2.5 kgf-m,
18.0 lb-ft)
Stabilizer joint nut (d): 50 N·m (5.0 kgf-m, 36.5 lb-
ft)
• Lower hoist and vehicle in unloaded condition, tighten strut nut (b) to specified torque.
Tightening torque
Strut nut (b): 50 N·m (5.0 kgf-m, 36.5 lb-ft)
• Install windshield wiper arms with blades referring to
“Windshield Wiper Removal and Installation in
Section 9D”.
NOTE
• Don’t twist brake hose and wheel speed sensor harness when installing them.
• Install wheel speed sensor harness (1) which marking (2) in figure is placed to
open hook side of the bracket.
1 3
2
2
1
4
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(d) (a)
(b)
(c)
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