2004 MITSUBISHI LANCER EVOLUTION VIII oil change

GENERAL – OVERVIEW OF THE LANCER EVOLUTION VIII MR02
Lancer Evolution VIII MR Lancer Evolution VIII
GHCT9ASNDFZRS (5M/T)GHCT9ASNDFZRS (5M/T)
SJDFZRS (6M/T)SJDFZRS (6M/T)
SJGFZGSRSJGFZGSR
Overview of the Lancer Evolution VIII MR
Differences from the Lancer Evolution VIII
SectionDifference from Lancer Evolution VIIIPage
Change to cam profile (6 M/T)15
Enlarged turbo nozzle diameter (6 M/T)16
Adoption of tail pipe with builtin sound proofing in exhaust main
silencer (6 M/T)17
Addition of wastegate solenoid valve (1 ‡ 2)*118
Change to catalyst volume (2.0 l. ‡ 1.5 l.) (6 M/T)
Engine
Enlarged engine oil cooler
Power trainChange to super AYC differential21
Installation of Bilstein shock absorbers*231
Optional BBS 17inch alloy wheels (new design)31
Drive control
Black finish on spokes of Momo genuine leather steering wheel
(Type A) (GSR)
Aluminium used in roof panel and side door beams41
Change to body colour41
Body
Boot lid opener fitted as standard (RS)
Addition of Evolution MR logo51Exterior
Outer panel on rear spoiler and “Lancer” logo changed to dark grey
Ornamentation added to carbon finish instrument panel
Centre panel changed to black
Shift lever with special Lancer Evolution MR logo plate (6 M/T)
Door trim fabric changed
Interior
Recaro seat fabric changed to suede finish allround (GSR)
Change to combination meter71
Black outs on extensions of headlights (discharge) and rear
combination lamps
Equipment
Adoption of roof aerial (RS)
Notes:*1: The No.2 wastegate solenoid valve does not operate in vehicles with 5 M/T transmission.*2: Joint development of special shock absorbers for the Lancer Evolution VIII MR, with the German firm, Bilstein.

ENGINE (4G6) – BASE ENGINE (6 M/T)13
2. Pistons
• Addition of Vshaped groove.
A Vshaped groove has been formed in the second land, with a view to reducing oil consumption.
•Modification of cooling channel.
The shape of the cooling channel, which recycles the oil, has been modified in order to improve recycling efficiency.
Modified shape of
cooling channelVshaped
groove added
3. Piston Rings (2nd)
To increase the tension in the piston rings, they have been changed
to ductile cast iron, from the standard cast iron used previously.
The end to end gap in the rings was also reduced.
These modifications are designed to reduce oil consumption.
ItemEvolution VIII MREvolution VIII
Tension10.5 N7.0 N
End to end gap0.30 – 0.45 mm0.35 – 0.50 mm
End to end gap

ENGINE (4G6) – BASE ENGINE (6 M/T)14
4. Oil Rings
The outer circumference of the side rail has been treated with chrome nitride. The thickness of the side rail has also been
reduced from 1.7 mm to 1.63 mm, with a view to increasing durability and reducing oil consumption.
(Evolution VII MR) (Evolution VIII)
Chrome nitride
5. Counterbalance shaft
The shape of the shaft was changed in order to reduce weight.
Counterbalance shaft (right)
Counterbalance shaft (left)Thickness
reduced
Thickness
reduced

ENGINE (4G6) – GENERAL, BASE ENGINE (6 M/T)18
Control system (6M/T)
The following changes have been made, based on the control system in the 4G63DOHCT/C engine fitted in the current
Lancer Evolution VIII.
* Addition of wastegate solenoid valve (1 valve –> 2 valves)
System Block Diagram
Air flow sensor (AFS)
Air temperature sensor
Atmospheric pressure sensor
Water temperature sensor
Throttle position sensor (TPS)
A/C switch
A/C load signal
Cam position sensor
Crank angle sensor
Alternator FR terminal
Vehicle speed sensor
Power steering fluid pressure
switch
Knock sensor
Intercooler water spray (auto)
Intercooler water spray (manual)
O
2sensor
Ignition switch –IG
Ignition switch –STPower supplyEngine ECU
Fuel injection control
Idle speed control (ISC)
Ignition timing control
Engine control relay control
Fuel pump relay control
A/C relay control
Fan motor control (radiator)
Fan relay control (A/C
condenser)
Alternator control
Air flow sensor filter reset
control
Fuel pressure control
Supercharging pressure
control
Secondary air controlIntercooler water spay control
Engine warning light control
O
2sensor heater control
Purge control
Diagnosis output
RAM data transmissionNo. 1 indicator
No. 2 indicator
No. 3 indicatorNo. 4 indicator
ISC servo (stepper motor)
Ignition coil A (No.1 – No.4)
Ignition coil B (No.2 – No.3)
Engine control relay
Fuel pump relay 2
Fuel pump relay 3
A/C relay
Fan controller (radiator fan)
Fan motor relay (HI, LOW)
(A/C condenser)
Alternator G terminal
Air flow sensor
Fuel pressure control valve
No. 1 wastegate solenoid valve
No. 2 wastegate solenoid valve
Secondary air control solenoid
valve
Intercooler water spray relay
Intercooler water spray lamp
Tachometer
Engine warning lights O
2sensor heater
Purge control solenoid valve
Diagnosis output terminal
Diagnosis output terminal (for
MUTII)

31DRIVE CONTROL – Front suspension, Rear suspension, Wheels, Tyres
SECTION 3
DRIVE CONTROL
CONTENTS
Front suspension....................................31
Rear suspension .....................................31Wheels and Tyres ...................................31
Front suspension
Roadholding has been improved by the adoption of Bilstein shock absorbers.
(GRS: Standard; RS: Optional)
Notes :
* Bilstein are one of the world’s leading manufacturers of shock absorbers, and their products are used in racing vehicles
worldwide.
Rear suspension
• Roadholding has been improved by the adoption of Bilstein shock absorbers.
(GRS: Standard; RS: Optional)
•The specifications of the coil springs have been changed. (GSR)
Specifications
ItemLancer Evolution VIII MR GSRLancer Evolution VIII GSR
Wire diameter mm12
Average diameter mm88
Free length mm277287
Wheels and Tyres
BBS lightweight forged alloy wheels are provided as an option,
which reduces the unsprung weight. Fitting these BBS lightweight
wheels allows the Bilstein shock absorbers to display their fullrange of performance.
Note:
See “Section 8 Main Equipment” for detailed specifications.

REFERENCE MA
TERIAL – MAIN EQUIPMENT86
Main Equipment
The “” symbol indicates standard equipment, and the “” symbol indicates a manufacturer’s option. The equipment may change, depending on the time of manufacture.
4WD
RSGSR
Equipment
5M/T6M/T
Aluminium turbollr
Intercooler water spray systemlll
W/out Intercooler water spray systemrr
Engine
Engine oil coolerlll
5speed manual (short stroke, high gear
ratio)l
6speed manual (short stroke)ll
Gear leverLeather
Front LSDHelical
Rear LSDMechanical
l
lll
Active Centre Differential (ACD)lll
Power
Train
Active Yaw Control Differential (AYC)rll
Bilstein shock absorbersrrl
Front strut tower barslll
205/65R15 94HlTyres
235/45ZR17rll
T125/70D16lSpare
tyre
T125/70D17rll
Steel (5hole)
(Offset : 46 mm)
(PCD:
114.3mm)15inch
¥ 6.0JJ
silverl
17inch
¥ 8.0JJrllSteel (5hole)
(Offset : 38 mm)
(PCD:114.3mm)
17inch
¥ 8.0JJ
(BBS)
rrr
Steel (5hole)
(Offset : 40 mm)
(PCD:
114.3mm)4.0T•
16inchl
Wheel
Steel (5hole)
(Offset : 30 mm)
(PCD:114.3mm)4.0T•
17inch
rll
Centre capBlackl
Power steeringlll
MOMOllSteering wheel (leather
type ; 3spoke; airbag)
MOMO
(black
spokes)
rrl
Tilt steering mechanism
Full cover
lll
Release switch
(gloss)
Parking brake
lever
Leather grip
l
15inch ventilated
disclFront
17inch ventilated
disc (BREMBO)rll
15inch ventilated
disc (drum in)l
Drive
Control
Brake
Rear
16inch ventilated
disc (drum in)(BREMBO)
rll
Note:
In the wheel columns, “PCD” is an abbreviation of “Pitch
Circle Diameter”, referring to the diameter of the pitch circle
of the installation holes.
4WD
RSGSR
Equipment
5M/T6M/T
4 ABS (sports ABS)rll
Pressure control valve (PCV)l
Drive
Control
Electronic Brake Force Distribution
System (EBD)rll
Central door lockingrrl
Boot lid openerlll
Fuel filler flap opener
Child protection
lll
Multimode keyless entryl
BlackllOuter door handles
Body colourl
Inside door handlesColouredlll
Power windows with safety mechanismsrrl
Windscreen (laminated glass)Green
Front door windows (UV absorbing
glass)lll
Greenll
Green, with sun
shadel
Rear window
glass (with
heating element)
Privacy glassr
GreenlllRear door
windows
Privacy glassr
GreenlllRear static
windows
Privacy glassr
BonnetAluminiumAir outlet
WingAluminium
RoofAluminium
lll
Body
Rear end crossbarll
Exclusive
front bumperBody colour
Exclusive
rear bumperBody colour
Windscreen
Rear window
Pillar, roof
Mouldings
(black)
Belt line
lll
Manual type (black)llDoor mirror
Electric stowable
remote control door
mirror (body colour)l
Front air damExclusive
extension
Rear air dam
lll
Exterior
Rear spoiler (large size)lll

MPI General13A2
General
Service information issued contains the changes noted below. Other service details remain unchanged.
• Change from one to two wastegate solenoid valves. However, the No.2 wastegate solenoid valve on the 5 M/T is not
functional.
• Diagnosis code No. P1500 changed to P0622. <6M/T>
MPI system diagram
1.O2 sensor2. Air flow sensor3. Air intake sensor4. Throttle position
sensor
5. Cam position sensor6. Crack angle sensor7.Barometric pressure
sensor
8. Water temperature
sensor
9. Knock sensor•Power supply
• Ignition switch IG
• Ignition switch ST
•Vehicle speed sensor
• A/C switch
• A/C load signal
•Power steering fluid
pressure switch
•Alternator FR signal
•Intercooler water spray
switch (auto)
•Intercooler water spray
switch (manual)
1.Injector2. ISC servo (stepper
motor)
3.Fuel pressure control
solenoid valve
4.No.1 wastegate solenoid
valve
5. No.2 wastegate solenoid
valve
6. Purge control solenoid
valve
7. Secondary air control
solenoid valve•Engine control relay
•Fuel pump relay 2, 3
• A/C relay
•Ignition coil
• Fan controller
• Condenser fan relay (HI)
•Condenser fan relay
(LOW)
•Engine warning lamp
•Diagnosis output
• Alternator G terminal
•Intercooler water spray
relay
•Intercooler water spray
lamp
Engine ECU
6.Purge control
solenoid valveCanister
7.Secondary air
control solenoid valveFrom fuel tank
Secondary
air valveBypass
valve
1. O2sensor
3.Fuel pressure
control solenoid valve
4.Throttle
position
sensor
7. Barometric pressure
sensor
3. Air intake
sensor2. Air flow sensor
4. No.1
wastegate
solenoid valve
5.No.2 wastegate
solenoid valve
Only operates on 6M/TWastegate actuatorFuel pressure
regulator
1. Injector5.Cam position sensor8.Water temperature sensor
9.Knock sensor
Crack angle sensor
Catalytic converter Air
intakeCheck
valve
2.ISC servo
Vacuum
tank
From fuel
pump To fuel
tank

FRONT SUSPENSION – STRUT ASSEMBLY33A2
STRUT ASSY
Vehicles fitted with Bilstein shock absorbers
Dismantling and Assembly
NOTE
When applying grease, ensure that
none of it is left on the insulator
rubber as this could lead to insulator
rubber damage.
Dismantling procedure
1.Dust cover
2.Selflocking nut
3. Strut insulator ASSY
4. Upper spring seat5.Bumper rubber6. Dust cover
7. Coil spring8.Lower spring pad
9. Strut ASSY
Important note on dismantling
Procedure remains unchanged, apart from the following point:
Removal of selflocking nut
1. Compress the coil spring using the following special tool
• Spring compressor body (MB991237)
• Arm set (MB991238)
A

A
A
B