Mitsubishi 3000GT Instruction manual

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MITSUBISHI
MOTORS Workshop Mqnuol
chossis
SUPPLEMENT
300clciT'gg
Pub. No. PWUE9I l9-H
Pub. No. PWLE92O3-6

MITSUBISHI
3Cl00GiT
WORKSHOP MANUAL
SUPPLEMENT
FOREWORD
This Workshop Manualcontains procedures for re-
moval, disassembly, inspection, adjustment, reas-
sembly and installation, etc. for service mechanics.
Use the manuals indicated on the following page in
combination with this manualas required.
All information, illustrations and product descrip-
tions 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.
@
r
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@ mmuUstrl uotoür Corporaillon tay tgOO

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TECHNICAL INFORMATION MANUAL
WORKSHOP MANUAL
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<Europe>
<General Export, GCC and
Australia>
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WARNINGS REGARDING OF SUPPLEMENTAL RESTRAINT SYSTEM
(sRs) EQUIPPED VEHICLES
WARNING!
tii improper servlce or malntenance of any component of the SRS, or any -SRgrelaled @mponent,
- - can lead to personal Inlury or death to servlce personnel (from Inadvertent flrlng of the alr
bag) or to the driver (from renderlng the SRS inoperatlve).
(2) tf ii ts possible that the SRS componente are subfected _to heat oYe-r 99:C_ (_299:F) ln baltlng
or in drying after painting, remove the SRS componerrts (air bag module, SRS-ECU) beforchand.
(3) Servicqor maintenance of any SRS component or SR$related component must be performed
only at an authorlzed MITSUBISHI dealer.
(4) MITSUBISHI dealer personnel must thoroughly revlew this manual, and especially lts GROUP
S2B - Supplemental Restraint System (SRS), before beginning any service or maintenance
of any component of the SRS or any SRS'related component.

GENERAL - Vehicle ldentification 00-1
GENERAL OO
GENERAL I
VEHICLE IDENTIFICATION
MODEL
VEHICLES FOR EUROPE
Model code Engine model Transmission model Fuel suffi sll,sgn I . '
Zl6AMJGFL6 6G72 (2,972mt) W6MGl MPI
Zl6AMJGFR6
VEHICLES FOR GENERAL EXPORT
Model code Engine model Transmission model Fuel supply system
Zl6AMNGFL 6G72 (2,972 m() WsMG1 MPI
Zl6AMNGFR
VEHICLES FOR GCC
Model code Engine model Transmission model Fuelsupply system
Zl6AMNGFLW 6G72 (2,972m() WsMGl MPI
CHASSIS NUMBER
The chassis number is stamped on th€ toeboard inside the
engine compartment.

00-2 GENERAL - Vehicle ldentification
A J iI B T N z16 A X YüXIOO1 A
TTTTTTTTT--r--
rrrlllllll
12 3 4 5 6 7 8 9 10
v0207AA
ji3. -
1. Asia 6. Devetopment order
216 - 2,972 mf (Full time 4WD)
2. Japan 7. Sort
g. MrrsuBrsHr A - Passenger car
A - For Europe, right hand drive 8. Model year
B - For Europe, left hand drive X - 1g9g
Y - For General Export or GCC 9. Plant
4. Body style Y - Ohe Motor Vehicle Works
M - 2-door hatchback 10. Serial number
5. Transmission type
N - S-speed manual transmission
J - 6-speed manual transmission

13-1
FUEL
CONTENTS
T
GENERAL ......... 2
Outfine of Changes ........ 2
SPECfFfCATIONS ........ 2
General Specifications ... ......... 2
TROUBLESHOOTING ..... 2
ON-VEHICLE INSPECTION OF MPI
coMPoNENTS . .... 3
Power Supply and lgnition Switch-lG .... g
Engine Control Unit Power Earth . ....,.. 4
Fuel Pump . ... s
Air Flow Sensor ..... I
Intake Air Temperature Sensor ... 10
Barometric Pressure Sensor ...... 11
Engine Coolant Ternperature Sensor .. .. 19
Throttle Position Sensor ... 14
ldle Position Switch ....... 16
Cam Position Sensor ...... 17
Crank Angle Sensor ... ... 19
fgnition Switch-ST ...:.. ... 21
Vehicre spe€d s.nro, : . . . .' : : . : : . : . : : . : . . . . . n
Power Steering Fluid Pressure Switch .:...... 24
Air Conditioner Switch and Power Relay . ..... 25
Detonation Sensor ....... . 26
Electrical Load Switch ...;....... :. ....., 27
Orygen Sensor
Fan Motor Relay (Radiator Fan,
Condenser Fan) .
fnjectors ...... 92
ldle Speed Control Servo
(Stepper Motor Type) .... ....... 33
lgnition Coil and Power Transistor ... ... 34
Purge Control Solenoid Valve . ... 97
EGR Control Solenoid Valve . .... 38
Fuel Pressure Control Valve . .... 39
Waste Gate Control Solenoid Valve . ... 40
Boost Meter ..... ... 41
Anti-fock Braking Signal ... 42
Terminal Voltage Ch€ck Chart. ... 42

13-2 FUEL - General, Specifications
GENERAL
OUTLINE OF CHANGES
o The engine-EOU in the vehicle for Europe has been changed as follows. Service procedures for
areas which are different from before have been established to conespond to this.
(1) The engine-EGU connector terminal layout has been changed to correspond to changes in the
inhibitor system.
SPECIFICATIONS
GENERAL SPECIFICATIONS
TROUBLESHOOTING
NOTE
Replace the engine-ECu together with the immobilizer-EOU and ignition key.
Items Specifications
Engine control unit identification modelNo.
LHD
RHD E2f81492
E2T61491

FUEL - On-vehicle Inspection of MPI Components 13-3
ON.VEHICLE INSPECTION OF MPI COMPONENTS
POWER SUPPLY AND IGNITION SWITCH{G
Equipment skle
connector
Engine control
unit
Engine control unit connector ?FU1943
rlrlrlrlrl
trol relay or
pump relay
'l 16FOs90
HARNESS INSPECTION
Measure the ignition switch (lG) terminal
input voltage.
o Engine control unit connector:
Disconnected
lgnition switch Voltage (V)
OFF 0-1
ON SV
Repair the
harnegs.
(lgnition
switcfr - lu)
or check the
ignition
ewitcfi

13-4 FUEL - On-vehicle Inspection of MPI Gomponents
Measure the power supply voltage of the
control relay.
o lgnifrcn switch: OFF
r Control relay connec'tor:
Disconnected
Voltage (V)
SV
?FU1928
Repairthe
hamess.
(Battery-
@ tel)
(Battery -
O t41)
Ched< for an open-circuit, or a short+irorlt
to earüI, betwen tha engine control unit and
the conbol relay.
o Engine conüol unit connector:
Disconnected
. Conüol relay oonnector:
Disconnected Repairthe
hamess.
(@ t't-tst)
(@ Fl-lta,
Eil
?FU1930
Measure power voltage to the actuator.
o Control relay connec{or:
Connected
o Engine control unit connector:
Connec{ed
Engine Voltage (V)
Cranking 8V or higher
Racing SV
Malfunction
of control
relay or
engine
controlunit
ENGINE CONTROL UNIT POWER EARTH
Engine control unit
vv
9FU0393

FUEL - On-vehicle Inspection of MPI Components 13-5
FUEL PUMP
Equipment
connector
v
lll l"ll
ltvt-tl
@
lgnition switch flGl
: @ Equipment side
z connector
@ Hamess side
@nnector
:
7FU2486 :
Equipment
side
@nn@tor
J\.4
rz-l uN
t I tatal
Engine control unit @nnector
9FUO393

13-6 FUEL - On-vehicle lnspection of MPI Components
HARNESS INSPECTION
Check the fuel pump.
. Apply battery voltage to the fuel pump
rehy No. 2 and operate the pump.
E
?F U 0954
Check the earü circuit of the tuel pump.
o Fuel pump oonnector:
Disconnec'töd
Repairthe
hameas.
(@ r?t-
Earüt)
ffi
?FU0964
Check for an open-circuit, or a short€ircuit
to earür, between the fuel pump relay No.2
and the fuelpump.
o Fuel pump relay No.2 connector:
Disconnected
r Fuel pump connoctorl
Disconnected E
Repairlhe
hamess.
(@m-
@ t2'l)
ffi
?FU096 I
Gheck for an open+ircuit, or a short-circuit
to earth, between the fuel pump relay No.2
and the engine control unit.
o Fuel pump relay No.2 connector:
Disoonnected
o Engine control unit connector:
Disconnected Repair the
hamess.
(o t-t-Fq)
rFl
[ot Hamess side
connec{or
ffi
q
I
g
?FU0962
Check for continuity between the fuel pump
relay No.2 and the resistor (for fuel pump).
. Fuelpump relay No.2 connector:
Disconnected
o Rgsistor (for fuel pump) connector:
Disconnected
Repair üre
hamess.
(@ t4-
@F)

FUEL - On-vehicle Inspection of MPI Gomponents 13-7
.flpalrthe
hamess.
(@ rFl-
@t-?t)
Check for continuity between the resistor
(for fuel pump) and fuel pump.
o Resistor (for fuel pump) connector:
Disconnected
o Fuel pump connector: Disconnected
E
?FU?481
Repair the
hamess.
(lgniüon
switch -
6l-5ll-i) or
cfiec-k the
[nilion switd.
Measure the power supply voltage of the
fuel pump relay No.l.
o Fuel pump relay No.l connector:
Disconnected
lgnition switch Voltage (V)
OFF 0
ON SV
?FU1928
Check for an open-circuit, or a short-circuit
to earth between the fuelpump relay No.1
and the engine control unit.
o Control relay connector:
Disconnected
r Engine control unit connector:
Disconnected Repairthe
hamess.
(@ rar-84)
Repairthe
hamess.
(@ Fl'
O l-e)
(@Ft-
@ t-rt)
?FU2038
Check for continuity between the control
relay No.1 and the control relay No.2.
. Control relay No.1 connector:
Disconnected
r Control relay No.2 connector:
Disconnected

13-8 FUEL - On-vehicle Inspection of MPI Components
AIR FLOW SENSOR
Airflowsensor { ll ll
(with built-in intake 'r lJ
air temperature sensor
and barometric pressure
Control relay
Air flow sensor 4
7
r9
3
90
I
@ Equipment side
connector
t-r
I tElttotl
@ Harness side
connector
:I
N
I
o
q)
)
o
=
oEngine control unit cpnnector
9FUO3
Air flow rate (liters/second)

FUEL - On-vehicle Inspection of MPI Components 13-9
HARNESS INSPECTION
Repairthe
harness
(@E- Con-
trol relay)or
check the
contiol relay.
Measure the power supply voltage.
o Connector: Disconnected
o lgnition switch: ON
Voltage (V)
SV
7n 065!t
Repairthe
hamess.
@E-@)
Measure the terminal voltage.
o Connector: Disconnected
o lgnition switch: ON
Voltage (V)
4.8 - 5.2
Repairthe
hamess.
(@ tr-@)
Check for continuity of the earth
circuit.
o Connector: Disconnected
Engine fi,-.r
unit harness
side connector
-of@
tl
l-
f\
I= 7Fw71s
Check for continuity between the air
flow sensor and the engine control
unit.
o Air flow sensor connector: Dis-
connected
o Engine control unit connector:
Disconnected otc
0( Repair the
harness.
'(oE-E)
-\-------\
-F

13-10 FUEL - On-vehicle lnspection of MPI Components
\
Temperature
Air flow sensor
(with built-in intake air
.------ temoerature sensor and
barometric pressure sensor)
Temperature 'tzata
INTAKE AIR TEMPERATURE SENSOR
temperature sensor
@ Equipment side
connector
connector
@ Harness side
connector
lntake air
temperature
sensor
72 Engine control unit
7FUO659
Engine control unit connector
vni;
5V
HARNESS INSPECTION
Check for continuity of the earth
circuit.
o Connector: Disconnected
'Repair the
(@ tr-@)

FUEL - On-vehicle Inspection of Mpl Gomponents 13-11
7f,,tw
Measure the power supply voltage.
o Connector: Disconnected
o lgnition switch: ON
Voltage (V)
4.5 - 4.9 Repair the
hamess.
(@tr-@)
Air flow sensor -r \l l/
(with burlt-in intake 'r U
atr temperature sensor
and barometric pressure
BAROMETRIC PRESSURE SENSOR
Barometric
pressure sensor
7FU0663
@ Equipment side
connector
Air flow sensor
conneclor
@ Harness side
lh I
Barometric pressure sensor
9FU0393

13-12 FUEL - On-vehicle Inspection of MPI Components
HARNESS INSPECTION
Check for continuity of the earth
circuit.
o Connector: Disconnected ''e9
0( Repairthe
hamess.
(@tr-@)
Measure the power supply voltage of
the barometric pressure sensor.
o Connector: Disconnected
o lgnition switch: ON
Voltage (V)
4.8 - 5.2 Repairthe
hamess.
(@E-@)
TFI.n666
Check for an open+ircuit, or a short-
circuit to earth between the engine
control unit and the barometric pres-
sure sensor.
o Air flow sensor connector: Dis-
connected
r Engine control unit connector:
Disconnected @
0( Repairthe
hamess.
(@ tr-E)

FUEL - On-vehicle Inspection of MPI Components 13-13
ENGINE COOLANT TEMPERATURE SENSOR
Engine control unit
side Coolant temperature sensor
9FU0106
Engine control unit @nnector
Equipment
connector
@
Coolant temperature
razatt
Q)
o,
=
o
o.
=
o
Coolant temperature
+
fTt
5V
HARNESS INSPECTION
Check for continuity of the earth
circuit.
r Connector: Disconnected 6n
0ß Repdirüre
hamess.
(@ tr-@)

13-14 FUEL - On-vehicle Inspection of MPI Components
Measure the power supply voltage.
o Connector:Disconnected
o lgnition swrtch: ON
Voltage (V)
4.5 - 4.9 Repairthe
hamess.
@ tr-@)
THROTTLE POSITION SENSOR
sensor Equipment side
connector
t.ittdEr
@ Harness side
connector
Engine control ril5V
q)
o
=
'-
0)
FMinimum Maxr
Throttle shaft turning angle
Throttle position sensor
Engine control unit connector

FUEL - On-vehicle Inspection of MPI Components 13-15
HARNESS INSPECTION
Measure the power supply voltage o{
the throttle position sensor.
o Connector: Disconnected
o lonrtion swrtch:ON
Voltage (V)
4.8 - 5.2 Re.pairthe
ihamess.
(@ E-E)
Harness
Repairthe
hamess.
(@@-@)
Check for continuity of the earth
circuit
o Connector: Disconnected
Repair the
hamess.
(@ E:"8)
Check for an open circuit, or a short-
circuit to earth between the engine
control unit and the throttle position
sensor.
o Throttle posttron sensor connec-
tor: Disconnected @
o(
Engine control unit conneclor
Disconnected