1991 MITSUBISHI 3000GT oil type

FUEL SYSTEM - On-vehicle Inspection of MPI Components13-119PURGE CONTROL SOLENOID VALVE
Q Harness side
connector
I
Control relay
@ Equipment side
connector connector
unit
OlAO324
Engine control unit connector
7FUO653OPERATION
lThe purge control solenoid valve is an ON-OFF type one which controls introduction of purge air from the
canister into the intake air plenum.
lThe battery power is supplied to the purge control solenoid valve through the control relay. When the
engine control unit turns ON the power transistor in the unit, current flows to the coil, introducing purge
air.
INSPECTION
Using Multi-use Tester
Function
Actuator testItem No.Drive content
Check conditionNormal state
08Solenoid valve from OFFIgnition switch: ONOperating sound is heard
to ONwhen driven
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FUEL SYSTEM - On-vehicle lnwection of MPI ComDonents13-121
LEGR CONTROL SOLENOID VALVE - Non Turbo, Turbo>MlBYZBAControl relav
EGR control
solenoid valve@ Equipment side
connector
Engine
control
unitEngine control unit connector
7FUO653
OPERATION
lThe EGR control solenoid valve is a duty control type solenoid valve. It makes control by leaking EGR valve
operating negative pressure to the throttle body A port.
lPower supply from the battery is sent through the control relay to the EGR control solenoid valve. When
the engine control unit turns off the power transistor inside the unit, current no more flows through the
coil and EGR valve operating negative pressure leaks.
TROUBLESHOOTING HINTIf the results of EGR control solenoid valve on-vehicle and off-vehicle inspections are normal but the
self-diagnosis code for EGR system failure is displayed, check the EGR valve, vacuum hose and EGR passage
for blocking.
c.
1 TSB Revision

FUEL SYSTEM - On-vehicle Inspection of MPI ComDonents13-123FUEL PRESSURE CONTROL VALVE
Control relay
Fuel pressure
control valveEquipment
connectorside
Enaine control unit
connector
7FUO653
OPERATION
lThe fuel pressure control valve is an ON-OFF type solenoid valve that switches the pressure introduced to
the fuel pressure regulator between either intake manifold pressure or barometric pressure.
lBattery power is supplied to this valve via the control relay. When the engine control unit turns ON the
internal power transistor, the coil is energized to allow barometric pressure to be introduced to the fuel
pressure regulator.
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13-126FUEL SYSTEM - On-vehicle Inspection of MPI Components
WASTE GATE CONTROL SOLENOID VALVE

7FU1007Control relav
Waste gate control
solenoid valve
Q Equipment side
connector
unit
0110324Enqlne control unit connector
7FUO653
OPERATIONlThe waste gate control solenoid valve is an ON-OFF type solenoid valve that controls the boost pressure
that is introduced to the waste gate actuator.
lBattery power is supplied to this valve via the control relay. When the engine control unit turns ON the
internal power transistor, the coil is energized to release part of the boost pressure applied to the waste
gate actuator.
TROUBLESHOOTING HINTSIf the waste gate control solenoid valve harness and the unit itself are normal, but poor acceleration or other
abnormalities are experienced, the
follwing problems are suspected.
(1) Faulty boost pressure control system
(2) Poor connection of intake air hose
(3) Faulty turbocharger or waste gate actuator
(4) Clogged exhaust system
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17-2EMISSION CONTROL - Specifications / Troubleshooting
SPECIFICATIONS
GENERAL SPECIFICATIONSMl’ICA- -\
Items
Crankcase emission control systemSpecifications
Closed type with positive crankcase ventilationvalve
Evaporative emission control systemCanister storage type
Canister
Charcoal type
Purge control solenoid valve
ON/OFF solenoid valve
Exhaust emission control system
Exhaust gas recirculation system
EGR valveVacuum-activated diaphragm type
EGR temperature sensor Thermistor type
EGR control solenoid valve - Non Turbo, Turbo>Duty cycle solenoid valve
Catalytic converter
Monolith type
Location
Under floor
Turbocharger outlet (front bank and rear bank,)
and under floor
SERVICE SPECIFICATIONSMl7CB-.
ItemsSpecifications
Purge control solenoid valve coil resistance
036 - 44 [at 20°C (68”F)I\
EGR temperature sensor resistancekfl60 - 83 [at 50°C (I 22”F)]
11 - 14 [at 100°C (212”F)l
EGR control solenoid valve coil resistance1236 - 44 [at 20°C (68”F)lI
TROUBLESHOOTING
Symptom
Engine will not start
or hard to start
Rough idle or engine
stalls
Probable cause
Vacuum hose disconnected or damaged
The EGR valve is not closed
Malfunction of the purge control solenoid valve
The EGR valve is not closed
Vacuum hose disconnected or damaged
Malfunction of the positive crankcase ventilationvalveRemedy
Repair or replace
Repair or replace
Repair or replace
Repair or replace
Repair or replace
Replace
Malfunction of the purge control systemCheck the system; if there is a
problem, check its component parts
Engine hesitates or3oor acceleration
Zxcessive oil:onsumptron
Malfunction of the exhaust gas recirculation
system
Positive crankcase ventilation line cloggedCheck the system; if there is a
problem, check its component parts
Check positive crankcase
ventila-tion system
Ioor fuel mileageMalfunction of the exhaust gas recirculation
systemTSB RevisionCheck the system; if there is a
problem, check its component parts
d

MANUAL TRANSAXLE - Specifications22-3
SPECIFICATIONS
L
GENERAL SPECIFICATIONSM22CA.A
items
Model
Applicable engine
Type
Gear ratio
1 st
2nd
3rd
4th
5th
Reverse
Final reduction ratio
Speedometer gear ratio (driven/drive)
Oil quantityliters (qts.)
Specifications
F5M33-2-SNZR
6G72-DOHC MPI
5-speed transaxle floor shift
3.090
1.833
1.217
0.888
0.741
3.166
4.153
28136
2.3 (2.4)
SERVICE SPECIFICATIONSM22CB-A
mm (in.)
L.J
Items
Standard value
Transaxle
Input shaft end play
Input shaft rear bearing end play
Intermediate gear bearing end play
Intermediate gear preload
Output shaft preload
Differential
Differential case preload
Differential pinion backlash
Limit
Specifications
0 - 0.05 (0 - ,002)
0.01 - 0.09 i.0004 - ,004)0.01 -0.14 (.0004-
,006)
0.05 - 0.10 (.002 - ,004)
0.05 - 0.10 (.002 - ,004)
0.05 - 0.10 (.002 - .004)
0.025 - 0.150 (.OOl - ,006)
Synchronizer ring and clutch gear clearance0.5 (.02)
SNAP RING (FOR ADJUSTMENT) AND SPACERM22CF.A
Part name
Spacer
(For adjustment of input shaft end play)Thickness mm (in.)
0.80
i.0315)
0.83 (.0327)
0.86(.0338)
0.89t.0350)
0.92
(.0362)
Identificationsymbol
80
83
86
89
92
Part No.
MD727661
MD720937
M D720938
MD720939
MD720940TSB Revision

MANUAL TRANSAXLE - Specifications
SPECIFICATIONS
22-49
MZZCA-B
iGENERAL SPECIFICATIONS
L
Items
Model
Applicable engine
Type
Gear ratio
1 St
2nd
3rd
4th
5th
Reverse
Reduction ratio
Primary
Front differential
Transfer
Speedometer gear ratio (driven/drive)
Oil quantityliters (qts.)
Transaxle
Transfer
Specifications
W5MGl-0-FNBR
6G72-DOHC (Turbo)
5-speed transaxle floor shift
3.071
1.739
1.103
0.823
0.659
3.076
1.375
2.888
0.814
27136
2.4(2.5)
0.27(.29)
LLUBRICANTSMUCD-B
Items
Specified lubricants1 Quantity lit. (qts.)I
classification GL4 or higher
1 Transfer oil seal lip
a:
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22-52 MANUAL TRANSAXLE - Service Adjustment Procedures
DRIVE SHAFT OIL SEALS REPLACEMENTMZZFDAJ)(I) Disconnect the drive shaft from the transaxle.
(Refer to GROUP 26
- Drive Shaft.)
(2) Remove the transfer assembly.ij(3) Using a flat-tip
(-) screwdriver, remove the oil seal.
L.H. side\
For L.H.
Dust seal.
For R.H.(4) Install the oil seals using the following procedure:Using the special tool, tap the oil seal into the transaxle.
Note that there are two types of oil seals, one for R.H. and
the other for L.H., and the shape of each type is different,
as shown.
(5) Drive shaft
011 seal must be installed in the direction shown.(6)
$4~1~ a coatrng of the transmission oil to the lip of the oil
Transmission oil: Hypoid gear oil, SAE
75W-90 or
75W-85W conforming to API classi-fication GL-4 or higher
wision