2005 MITSUBISHI LANCER EVOLUTION IX oil change

MPI – GENERAL
13A-1
SECTION 13A
MPI (Multi-point Fuel Injection)
CONTENTS
General ..................................................................... 2
Servicing standards .................................................3
Special tools ............................................................3
Troubleshooting ......................................................5Servicing the vehicle ............................................29
1. Adjusting specified revolutions when idling.....29
2. MPI system components layout diagram ........29
3. Checking the air temperature sensor..............29
4. Checking the oil feeder control valve..............30
GENERAL
Servicing guidelines have been changed because of the changes listed below.
•Avariable valve timing control system (V.V.T.) has been adopted. Because of this, an oil feeder control valve and an intake
cam position sensor have been added.
•Amanifold absolute pressure (MAP) sensor has been added.
•An air temperature sensor has been added.

MPI – TROUBLESHOOTING
13A-5
TROUBLESHOOTING
1. Diagnosis Functions
1-1 Engine warning light (Check engine lamp)
Changes have been made to engine warning lights.
Checklist for engine warning lights.
1-2 Checking of freeze frame data
Additions have been made to the freeze frame data tables.
Checklist for data tables
1-3 Failsafe and back-up functions
If one of the diagnosis functions detects that one of the main sensors is malfunctioning, it will ensure that the car can be driven
safely, in accordance with the pre-set control logic.
Engine ECU
Air flow sensor (AFS)
Manifold absolute pressure (MAP) sensor system
Intake air temperature sensor
Throttle position sensor (TPS)
Water temperature sensor
Crank angle sensor
Exhaust cam position sensor
Injector
Ignition coil (with built-in power transistor)
Atmospheric pressure sensor
O
2sensor
O
2sensor heater
Fuel system malfunction
Knock sensor
Intake cam position sensor system
Oil feeder control valve system
Item numberType of data Units/condition
95MAP sensorkPa
Malfunctioning itemControl measures taken when a malfunction occurs
Air temperature sensorRegulation of the intake air temperature at 25ºC.
Exhaust cam position sensor(1) Simultaneous flushing out of all fuel pipes.
(But only if the No. 1 cylinder has not been detected in the
TDC position after the ignition switch has been turned "ON".)
(2) Cutting off the fuel 4 seconds after the malfunction has been
detected.
(But only if the No. 1 cylinder has not been detected in the
TDC position after the ignition switch has been turned "ON".)
Intake cam position sensorThe oil feeder control valve should be switched "OFF", and the
angle of the cam should be in the reset position.

13A-29MPI – TROUBLESHOOTING, ON-VEHICLE SERVICING
•Example 2
Waveform characteristics
The waveform is displaced to the left or the right.
Cause of the problem
The timing belt is loose
There is an abnormality in the fuel pump camshaft
On-vehicle servicing
1. Adjusting standard engine revolutions
when idling
The standard engine revolutions when idling have been
changed. All other servicing requirements are the same as
before.
Standard engine revolutions when idling: 800 ± 50 r/min
NameCodeNameCode
Intake cam position sensorCOil feeder control valveA
Air temperature sensorBManifold absolute pressure sensorB
Exhaust cam position sensorC
2. Layout diagram for MPI system components
air temp. sensor side
connector
air temp.
sensor
3. Inspection of the air temperature sensor
(1) Disconnect the air temperature sensor connector.
(2) Measure the resistance across the terminals of the air
temperature sensor connector.
Standard values:
13~18 kΩ (when at -20 ºC)
5.1~6.9 kΩ (when at 0 ºC)
2.0~3.0 kΩ (when at 20 ºC)
0.9~1.5 kΩ (when at 40 ºC)
0.40~0.78 kΩ (when at 60 ºC)
0.23~0.42 kΩ (when at 80 ºC)

MPI – ON-VEHICLE SERVICING13A-30
(3) Remove the air temperature sensor
(4) Use a hair dryer to increase the temperature and measure the
resistance.
Normal conditions:
air temp. sensor
Temperature (ºC)Resistance (kΩ)
Temperature increasesResistance decreases
(5) If the resistance deviates from the standard values, or if it does
not change, replace the air temperature sensor.
(6) Tighten the air temperature sensor to the specified torque.
Tightening torque: 14 ± N·m
4. Inspection of the oil feeder control valve
Checking the operation of the valve
(1) Disconnect the oil feeder control valve connector.
(2) Apply battery voltage across the terminals of the connector on
the oil feeder control valve side, and check that the sound of the
oil feeder control valve operating can be heard.
Caution
There is a chance that the coil may be damaged, so apply
the voltage in as short a time as possible.
Resistance across the terminals
(1) Remove the oil feeder control valve connector.
(2) Measure the resistance across the terminals of the connector on
the oil feeder control valve side.
Standard value: 6.9~7.9 kΩ (when at 20 ºC)
(3) If the resistance deviates from the standard value, replace the oil
feeder control valve.oil feeder control
valve connector
oil feeder control valve

FRONT SUSPENSION – GENERAL, SPECIAL TOOLS, STRUT ASSY
33-1
SECTION 33
FRONT SUSPENSION
CONTENTS
General........................................................1
Special tools ...............................................1Strut ASSY ..................................................1
General
The guidelines for the dismantling and assembly of the front suspension have been changed due to changes made to the
shape of the Bilstein shock absorbers.
Special tools
ToolNumberNameFunction
A: MB991237
B: MB991238A. Spring compressor body
B. Arm setDismantling and assembling
the strut ASSY
MB991680
A: MB991681
B: MB991682Wrench set
A. Wrench
B. Socket
Strut ASSY
Dismantling guidelines
 
A


Removal of the self-locking nut
1. Use the following special tools to compress the coil spring.
• Spring compressor body (MB991237)
• Arm set (MB991238)
Caution
(1) In order to completely compress the coil spring, ensure that
the special tool is fixed when at its greatest possible
extension and that it is fixed evenly to the coil spring.
(2) Do not use an impact wrench, because there is a danger
that the special tool may be damaged.

EXTERIOR – FRONT BUMPER
51-3
Dismantling and assembly
Dismantling procedure
1. Front 3-diamonds badge
2. Front bumper nut
3. Front number plate garnish
4. Front bumper cover A
5. Front bumper cover B
6. Air dam skirt panel
7. Front bumper centre net
8. Front bumper lower plate
9. Front bumper upper plate
10. Front bumper upper support11.Air intake cover
12. Front bumper net
13. Bumper side net (LH)
14. Oil cooler duct
15. Bumper side net (RH)
•Inter-cooler water spray hose and nozzle
(Ref Section 15)
16. Front bumper side plate
17. Front bumper upper reinforcement
18. Front bumper facing
Note:
The main points for dismantling and assembly remain unchanged.
Cross section through A-A
hook
Cross section through B-B
clip
 
A






A 

Service Manual
4G6
FOREWORD
This manual contains information about the 4G6
DOHC engine. It only covers those points that are
different from the service manuals listed below.
Therefore, this manual should be used in conjunction
with the following manuals.
• 4G6 DOHC engine Service Manual (No. 1039G46)
• 4G6 DOHC engine Service Manual Supplement
(No.1039G63)
This manual is based on the engine specifications as of
March 2005. Please note that some engine details may
not match those given in this manual due to
subsequent changes in engine specifications. The units
shown in this manual are the standard international
SI units.
(However, conventional units are used for some figures
taken from existing documents)
If you have any opinions, requests or queries regarding
this manual, please write them down on the “Servicing
Comment Form” on the last page, and fax them to us.
March 2005
Mitsubishi Motor Corporation
This manual is printed on recycled paper.
CONTENTS
General Information . . . . . . . . . . . . . . . 4
Servicing Specification Values . . . . . . 4
Tightening torques . . . . . . . . . . . . . . . . 5
Sealants . . . . . . . . . . . . . . . . . . . . . . . . . 7
Alternator / Ignition system . . . . . . . . . 8
Timing belt . . . . . . . . . . . . . . . . . . . . . 10
Fuel system . . . . . . . . . . . . . . . . . . . . . 13
Secondary air system /
inlet manifold . . . . . . . . . . . . . . . . . . . 15
Exhaust manifold . . . . . . . . . . . . . . . . 16
Water pump / Water hose . . . . . . . . . 17
Rocker arm / Cam shaft . . . . . . . . . . . 18
Oil pump / Sump . . . . . . . . . . . . . . . . . 21
Pistons / Connecting rods . . . . . . . . . 22
Crank shaft / Cylinder block . . . . . . . 25
Turbocharger. . . . . . . . . . . . . . . . . . . . 27
DOHC
ENGINE

44G6 – GENERAL INFORMATION/ SERVICING SPECIFICATIONS
General Information
The 4G63 MIVEC T/C engine fitted in the Lancer Evolution IX incorporates the following changes with respect to the previous
4G63 T/C engine.
• Adoption of variable valve timing control system
• Modification to clearance gap in piston No.2 ring coupling
• Addition of air intake temperature sensor
• Addition of boost sensor
Vehicle Model List
Specifications
Servicing Specification Values
Name Vehicle model Engine type Exhaust capacity cc Specifications
Lancer Evolution IX CT9A 4G63-7 1,997 DOHC 16-valve
MIVEC – T/C
Item Specification
Bore x stroke 85 x 88
Total displacement cc 1,997
Combustion chamber shape Pentroof type
No. of cylinders 4
Valve mechanism Type DOHC
Intake valves 8
Exhaust valves 8
Lash adjuster Hydraulic
Rocker arm Roller follower type
Compression ratio 8.8
Fuel injection device Electronically controlled MPI
Ignition device Electronically controlled two-coil type
Alternator AC type (with IC regulator)
Starter motor Deceleration drive
g
Item Standard value Limit value
Cylinder head, valves
Valve spring : free height mm 50.4 49.4
Valve spring : perpendicularity 2º or less 4º
Pistons, connecting rods
No.1 0.03~0.07 0.1Piston rings : Clearance between ring and ring
groove mm
No.2 0.02~0.06 0.1
No.1 0.20~0.30 0.8Piston rings : Closed gap mm
No.2 0.30~0.45 0.8
Oil ring 0.10~0.40 1.0