1991 MITSUBISHI 3000GT sensor

15-2INTAKE AND EXHAUST - Specifications / Special Tool
SPECIFICATIONS
GENERAL SPECIFICATIONS
Items
Air cleaner
Element
Exhaust system
Front exhaust pipe
Muffler
Coupling
Suspension system
Turbocharger
We
identification No.
Supercharging pressure control
Intercooler
Type
SERVICE SPECIFICATIONSMlSCA-
Specifications
Unwoven cloth type
Dual type
Expansion resonance type
Flat coupling, insertion type
Rubber hangers
Exhaust gas turbine type
TD04-09BS-6
Waste gate actuator and solenoid valve
Air cooled type
MVXB-.
Items
Intake and exhaust manifolds
Distortion oJcnylirrdjer head contactingsurface
Supercharging pressure solenoid valve
terminal resistance [at 20°C (68”F)lQ
Turbocharger
Supercharging pressure
kPa (psi)
Waste gate valve opening pressure
kPa (psi)
Standard
Less than 0.15 (.0059)36-44
Approx. 20 - 60 (2.9 - 8.7)
Approx. 48 (6.8)
Limit
0.2
f.008)
SPECIAL TOOLMlSDA- -
ToolNumber
MD998770
Name
Oxygen sensor
wrench
Use
Removal/Installation of oxygen sensor
J
iJ
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AIR CLEANERINTAKE AND EXHAUST
- Air Cleaner15-9i
REMOVAL AND INSTALLATIONMlIFA- -
/
i
Hose clamp12
I
15
Removal steps of air cleaner
1. Connection of air flow sensor connector
2. :;; cleaner cover and air flow sensor assem-
3. Air cleaner element
4. Air cleaner body
5. Air duct
6. Insulator
7. Collar
8. Air cleaner cover
9. Air flow sensor gasket
IO. Air flow sensor assemblyRemoval steps of air intake hose

11. Breather hose12. Air intake hose
13. ResonatorRemoval steps of air intake hose

14. Connection of boost hose
15. Air hose A
16. Breather hose
17. Connection of vacuum hose
l * 18. Air intake hose A, air by-pass valve and air
by-pass hose
19. Connection of purge hosel + 20. Atr intake hose B21. Connection of boost hoseI)+ 22. Air intake hose C
23. Air by-pass hose
24. Air by-pass valve
25. Air intake hose ATSB Revision

15-10INTAKE AND EXHAUST - Air Cleaner
INSPECTIONM15FCAH
&$1Air intake hose C
Air intake hose A
Air intake hose B
105FOO2:
lCheck the air cleaner body, cover or packing for deforma-
tion, corrosion or damage.‘,l Check the air duct for damage.
‘4
lCheck the air cleaner element for clogging, contamination
or damage.
If element is slightly clogged, remove dust by blowing air
from inside of element.
AIR-FLOW SENSOR CHECKFor inspection of air-flow sensor, refer to GROUP 13 -Air-Flow
Sensor Check.
SERVICE POINTS OF INSTALLATIONMl5FDAB
22. INSTALLATION OF AIR INTAKE HOSE C
/ 20. AIR
INTAKE HOSE B
/ 18. AIR INTAKE HOSE A, AIR
BY-PASS VALVE AND AIR BY-PASS HOSE
Engaging the notch with the
n mark at points indicated by
the arrows, insert air intake hoses B and C until seated.
‘$dInsert the turbocharger end of air intake hoses B and C
Icompletely.
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INTAKE AND EXHAUST - Intercooler
INTERCOOLER
/REMOVAL AND INSTALLATION18
/?1IO-13Nm
7-9ftJbs.
/Turbocharger
b-ring
05FOOO3MlSTA-
-
I
lo-13Nm7 - 9 ft.lbs.
OSPDOU24Nm
/ 17 ft.lbs.
ANm
7-.9 ft.lbs.
. .-...2.9 ft.lbs.lo-13Nm
’7 - 9 ft.lbs.2
_ .
Removal steps of intercooler right
**I. Air hose Cl *2. Air hose D3. Intercooler duct (RH)l *4. Intercooler rightRemoval steps of intercooler left
l *5. Air hoseG
6. Air pipe A
7. Heat protector F
I)* 8. Air hose Bl *9. Air hose E10. Air pipe BII. Air pope C** 12. Air hose F*I)13. Engine oil cooler
14. Intercooler duct (LH)
l * 15. Intercooler left
lo-13 Nm7 - 9 ft.lbs.OSFOC.02
(When equipped with intercooler left)
l Installation of Front Bumper
(Refer to GROUP 51 - Front Bumper.)Removal steps of air intake hose
16. Connection of boost hose
17. Air hoseA
18. Connection of air flow sensor connector
I)* 19. Air intake hose A** 20. Air intake hose B*a 21. Air intake hose C
22. Air cleaner
23. Air by-pass hose
24. Air by-pass valve
1 TSB Revision

INTAKE AND EXHAUST - Air Intake Plenum 15-13
AIR INTAKE PLENUM
/REMOVAL AND INSTALLATIQNMlWA-B
L/
i
I Post-installation ODeration
Adjustment of Accelerator Cable
(Refer to GROUP 13 - Engine Control.)
Removal steps7-9ft.lbs.
I. Connection air intake hose2. Connection of accelerator cable_*I)3. Throttle body assemblyl *4. Throttle body gasket
5. Connection of brake booster vacuum hose
6. Harness connecters8 60Nm;6Nm05FOO32
43 ft.lbs.13 ft.lbs.
7. Connection of VIC servo motor
8. EGR pipe
9. EGR valve California>
11. EGR temperature sensor
12. Accelerator cable bracket
13. Connection of air intake plenum stay14. Air intake plenum installation bolts
15. Air intake plenum installation nuts
16. Air intake plenum
17. Air intake plenum gasket
Throttle body
SERVICE POINT OF REMOVALM15UBC23. REMOVAL OF THROTTLE BODY ASSEMBLY
Leaving the water hoses and vacuum hoses in their
installed positions, remove from the air intake plenum.
INSPECTIONM15UCAD2
Check the following points; replace the part if a problem is
found.
AIR INTAKE PLENUM
(1) Check air intake plenum for defect or cracks. Replace if
defective or cracked.
(2) Check load (negative pressure) of drain port. Clean if
required.
SERVICE POINT OF INSTALLATIONMl5UDAB2
4. INSTALLATION OF THROTTLE BODY GASKET
Install with the gasket protrusion positioned as shown.
CautionIf installed in an incorrect direction, idling failure or
other problems may occur.
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15-14INTAKE AND EXHAUST - Air Intake Plenum
AIR INTAKE PLENUM MIBUA-C
REMOVAL AND INSTALLATION
(Refer to GROUP 13 - Engine Control.)
/TurbochargerO&gOSFOOOS5Nm
L
18 Nm18
19 Nm13 ft.lbs.
-05FOO31Removal steps
I. Connection.air hose A2. Connection of accelerator cablea*3. Throttle body assemblyl *4. Throttle body gasket
5. Air pipe A
6. Connection of vacuum hose
7. Connection of brake booster vacuum hose
8. Harness connecter
9. Connection of clutch booster vacuum hose
10. EGR temperature sensor California>
11. EGR valve
12. EGR valve gasket
13. EGR pipe installation bolts
14. EGR pipe gasket
15. Connection of air intake plenum stay
16. Air intake plenum installation bolts
17. Air intake plenum installation nuts
18. Air intake plenum
19. Air intake plenum gasket
SERVICE POINT OF REMOVALM15UBAU3. REMOVAL OF THROTTLE BODY ASSEMBLY
Leaving the water hoses and vacuum hoses in their
installed positions, remove from the air intake plenum.
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15-18INTAKE AND EXHAUST - Turbocharger (Front)
TURBOCHARGER (FRONT)
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operationl Removal and Installation of Radiator(Refer to GROUP 14 - Radiator.)l Removal and Installation of Transmission
l Rerr
IPipeioval and Installation of Front Exhaust(Refer to P.15-31.)
lJl QG!?
IMlSLA-AI
40 - 47 ft.lbs.
1\29 - 11 ft.lbs.Removal steps
** 1. Air hose C*+2. Air intake hose B*+ 3. Air hose D4. Air hose Al *5. Air hose B.6. Air pipe B
l +7. Air hose E8. Air pipe C
9. Drive belt(Refer to GROUP 11 - Service
Adjustment Procedures.)
10. Alternator assembly(Referto GROUP 16-Alternator.)
11. Engine oil level gauge guide
12. Heat protector B-13Nm
‘9 ft.lbs.
-‘25
05FOO43
13. Water pipe A
14. Water pipe B
15. Connection of oxygen sensor
16. Turbocharger
& fitting assembly
17. Gasket
18. Ring
l * ** 19. Oxygen sensor
20. Turbocharger stay
21. Exhaust fitting
22. Gasket
23. Oil return pipe
l * 24. Turbocharger assemblyl *25. Air conditioner compressor
26. Tension pulley bracket
27. Air conditioner compressor bracket
28. Oil pipe
I
LJ
1 TSB Revision

INTAKE AND EXHAUST - Turbocharger (Front)15-19
05FOO2(
SERVICE POINTS OF REMOVALM15LBAE
19. REMOVAL OF OXYGEN SENSORDisconnect the connector of the oxygen sensor, and install
the special tool to the oxygen sensor.
25. DISCONNECTION OF AIR CONDITIONER COMPRES-
SORDisconnect air conditioner compressor with hoses from the
bracket.
NOTEThe removed air conditioner compressor should be fas-
tened (by using rope, etc.) in a position that will not interfere
with the removal/installation of the turbocharger assembly.
INSPECTION
TURBOCHARGER ASSEMBLY CHECKMlSLCADl
lVisually check the turbine wheel and the compressor wheel
for cracking or other damage.
l Check whether the turbine wheel and the compressor
wheel can be easily turned by hand.
l Check for oil leakage from the turbocharger assembly.
lCheck whether or not the waste gate valve remains open. If
any problem is found, replace the part after disassembly.
OIL PIPE AND OIL-RETURN PIPE CHECKCheck the oil pipe and oil-return pipe for clogging, bending, or
other damage.
If there is clogging, clean it.
SERVICE POINTS OF INSTALLATIONMllLDAE
24. INSTALLATION OF TURBOCHARGER ASSEMBLYClean the alignment surfaces shown in the illustration.
Supply clean engine oil through the oil pipe installation hole
of the turbocharger assembly.
CautionWhen cleaning, care must be taken so that a piece of
the gasket does not enter the oil passage hole.
TSB Revision