Mitsubishi ECLIPSE Technical document

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ECLIPSE
GROUP INDEX
TECHNICAL
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .
INFORMATION
0
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MANUAL
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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FOREWORD
This manual has been prepared as an introduction
POWER-TRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
to the specifications, features, construction and func-
m
tions of the newly developed ECLIPSE.
Please read this manual carefully as it will be of
assistance for service and sales activities.
DRIVE-CONTROL COMPONENTS ...
Please note that the service manuals are also avail- m
able and should be used in conjunction with this
manual.
All information, illustrations and product descriptions
BODY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
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contained in this manual are current as at the time
of publication. We, however, reserve the right to
‘make
changes at any time without prior notice or
obligation.
EXTERIOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTERIOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EQUIPMENT . . . . . . . . . ..........................
Mitsubishi Motors Corporation reserves the right to make
changes in design or to make additions to or improvements in its
products without imposing any obligations upon itself to install
them on its products previously manufactured.
0 1994 Mitsubishi Motors Corporation Printed in U.S.A.

MODEL INDICATIONS
The following abbreviations are used in this manual for classification of model types.
ii
M/T:
Indicates the manual transaxle, or models equipped with the manual transaxle.
A/T:
Indicates the automatic transaxle, or models equipped with the automatic transaxle.
MFI:
DOHC:
Indicates the multiport fuel injection, or engines equipped with the multi-point injection.
Indicates an engine with the double overhead camshaft, or a model equipped with such
an engine.
Turbo:
Indicates an engine with turbocharger, or a model equipped with such an engine.
Non-Turbo:
FWD:
Indicates an engine without turbocharger, or a model equipped with such and engine.
Indicates the front wheel-drive vehicles.
AWD:
Indicates the all wheel-drive vehicles.
HOW TO READ A CIRCUIT DIAGRAM
N7OZBOOAA
Circuit diagrams are prepared as follows using these
symbols:
NOTE
For specific details concerning the interpretation
of circuit diagrams, refer to the separately bound
Service Manual.
Indicates power take out. Indicates input/output to/from
Ilp~x+connector. I\ ‘Y-.W :
A broken line indicates that
these connectors are the same
:’ e j;/
:, *
intermediate connectors.
\
The connector symbol
indicates the device
side connector (for an
intermediate connec-
tor, the male side con-
nector) as seen from
the terminal front (the
connector’s connec-
I
Output Input/
Input , ,
I output I
Indicates terminal No.
Indicates current flow downward or
t
j
upward as controlled by the control
,._
unit. I
Indicates harness junction where

o-1
GENERAL
CONTENTS
DESIGN FEATURES ........................
3
GENERAL DATA AND SPECIFICATIONS ...
17
TARGETS OF DEVELOPMENT ..............
2
TECHNICAL FEATURES .................... 4
Aerodynamic Characteristics
...................
5
Body Dimensions
.............................
4
Engine
....................................... .
L
Environmental Considerations
.................
12
Heater and Air Conditioning
.................. 12
Passive Safety
............................... 10
Steering Stability, Ride Comfort and
Active Safety
................................. 8
Theft-alarm System
.......................... 11
VEHICLE IDENTIFICATION .................
14
Engine Model Stamping
......................
16
Vehicle Identification Code Chart Plate
........ 14
Vehicle Identification Number List
............. 14
Vehicle Identification Number Location
......... 14
Vehicle Information Code Plate
................ 15
Vehicle Safety Certification Label
.............. 15

o-2
GENERAL - Targets of Development
TARGETS OF DEVELOPMENT
N70ABOOAA
While the ECLIPSE has been finding wide accep-
tance as a compact sporty vehicle since its introduc-
tion early in 1989, Mitsubishi Motors Corporation
has introduced further improvements with major ac-
cent on the following points to meet the market
needs and make the ECLIPSE a top car in its class.
l Styling
1. Organic and aerodynamic.
2. Wide and low proportions.
l Fun to drive
’
d
1. Quick acceleration and powerful response
(All models equipped with DOHC engine)
*
2.
Outstanding straight ahead stability and lin-
ear steering response (4-wheel multi-link
suspension adopted)
3. Outstanding braking performance
0 Value for money
1. Rich array of features at low price
2.
Low fuel consumption and low repair cost
A02A020
B21B027

GENERAL - Design Features
DESIGN FEATURES
L
b
Unique styling
l Forward extended cabin for roomy cabin and sporty styling
l Wide and low proportion body
l Aerodynamic oriented styling
New techniques
w l Chrysler-manufactured 2.0 lit. DOHC engine (420A en-
gine)
l Multi-link suspension for both front and rear
l Motor-driven outer slide type glass sunroof
Higher safety t
D
0 Passive safety features
SRS (for driver and front passenger), side door beams,
8 km/h (5 mph) resin bumper beams, flame-retardant
upholstery, etc.
l Active safetv features
id
Aerodynamic
+ l World’s top level Cd = 0.29
characteristics

GENERAL - Technical Features
TECHNICAL FEATURES
BODY DIMENSIONS
External Dimensions
Internal Dimensions
N70ADO2AA
LJ
5, 6
*
00X0081
Items
No. New model
mm (in.)
Difference between
previous and
new models
Overall Length
1
4,375 (172.2)
-15 (-59)
Overall Width
2
1,735 (68.3)
1,745 (68.7)*’ +40
(+1.57)
+50 (+1.97)“’
External
dimensions
Overall Height
Wheelbase
Tread (front)
Tread (rear)
Overhang (front)
Overhang (rear)
3
1,295 (51.0)
1,310 (51
.6)*2
-11 (-.43)
-4 (-. 15)*2
4
2,510 (98.8)
+40 (+1.57)
5 1,515 (59.6) +50
(+1.97)
8
1,510 (59.4) +60
(+2.36)
7
930 (36.6)
-45 (-1.77)
8935 (38.8)
-10 (-.39)
J
NOTES
*l denotes a vehicles with side air dam.
*2 denotes AWD.

GENERAL - Technical Features
o-5
Items
No.
New model Difference between
previous and
new models
Head Room 8 (front) 9 860 (33.9) 0
Head Room 8 (rear) 10 785 (30.1) 0
Internal
Brake Pedal Room
11 940 (37.0) +15
(+.59)
dimensions
Hip Point Couple 12 635 (25.0) 0
Front Hat Room
13 1,080 (41.7) 0
Front Hip Point Couple 14 714 (28.1) 0
AERODYNAMIC CHARACTERISTICS
Many Cd reduction design features, including taper-
ing at body corners, has raised ECLIPSE’s aerody-
N70ADOUA
namic characteristics to the top level of the class
(Cd
= 0.29).
\
\
/
18X0646
0
0
6
@ Tapered front side corners
@I Tapered rear pillar area
0 Tapered rear side corners
@ S$;ted and rounded engine hood
0 Smaller rear window inclination
angle for smoother air flow
0 Venturi skirt
0 Smoother and more flush under-
floor surface
$3 Raised rear floor plane
Greater contribution to fuel econo-

O-6
GENERAL - Technical Features
ENGINE
N70AEOOAA
Two basic DOHC engines are available.
420A Engine
On non-turbocharged models, the Chrysler-
manufactured 2.0 lit. DOHC 16-valve engine in-
creases domestic parts content. The engine and
‘L)
transaxle unit, unlike the conventional MMC engine,
is arranged with the engine on the passenger side
and the transaxle on the driver’s side.
4G63 Engine
On turbocharged models, new techniques and im-
provements have been embodied in the 4G63 en-
N70AEOlAA
gine to provide better performance and lower fuel
consumption.
NEW TECHNIQUES AND IMPROVEMENTS
Aims
Items
Smaller size Higher
Higher de- Tighter ex-
performance Less noise
Resource pendability haust emis-
and lighter and and energy and easier sion control
weight efficiency saving mainte- and better
nance
driveability
Higher compression ratio
XX
Better turbocharger performance
X
Small-size pressure type Karman air
flow sensor adopted
X X
Higher intercooler efficiency X X
Cylinder head intake port is tumble-
type
X X X
2-spray injector adopted XXX
Optimized injector direction and tim-
ing
X X X
Engine coolant temperature inlet
control system
X X
48 Kbyte computer adopted
XX
Resonance type knock sensor
adopted
X X X
Stainless steel exhaust manifold
adopted
X
Dual oxygen sensor system
adopted
X
Oxygen sensor mounted to front ex-
haust pipe
X
Piston top land height reduced
X
ECM-controlled EGR adopted
X
ECM-controlled fuel vapor control
system adopted
X
Generator control improved X
J
J
NOTE:
x : Applicable

GENERAL - Technical Features
o-7
T
1
Aims
id
I,
Higher per-
formance
and
efficiency
Higher de- Tighter ex-
Resource
pendability haust emis-
Less noise
and energy and easier sion control
saving
mainte-
and better
nance driveability
Items Smaller size
and lighter
weight
Cooling fan controlled by ECM
(Total Control System)
X
Integrated control of A/T
X X
Higher accuracy coolant tempera-
ture sensor
XX X
Crank angle sensor using Hall IC
directly mounted to crankshaft
X X
Cylinder block reinforced
X
X
XX
X
Turbocharger piping revised
Small-size and light-weight air
cleaner made of resin which allows
the air to pass with less resistance
X
Dual mode damper
Air bypass valve position optimized
X
I II
Power steering belt changed to V
ribbed style
r
Oil level gauge grip changed to
resin
Scan tool (MUT-II) compatible
I VOTE:
x : Applicable