sensor TOYOTA SUPRA 1995 Service Repair Manual

11. REMOVE CLUTCH RELEASE CYLINDER AND GROUND
CABLE
(a) Remove the 2 bolts and clutch release cylinder.
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
(b) Remove the bolt, ground cable and flexible hose bracket.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
12. REMOVE STARTER
(a) Remove the nut and disconnect the starter wire.
(b) Disconnect the starter wire connector.
(c) Remove the 2 bolts and starter.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
13. DISCONNECT BACK±UP LIGHT SWITCH CONNECTOR
14. DISCONNECT VEHICLE SPEED SENSOR CONNECTOR
15. REMOVE TRANSMISSION MOUNTING BOLTS
Remove the 3 transmission mounting bolts.
Torque:
Bolt A: 72 NVm (730 kgfVcm, 53 ftVlbf)
Bolt B: 37 NVm (380 kgfVcm, 27 ftVlbf)
16. JACK UP TRANSMISSION SLIGHTLY
Using a transmission jack, support the transmission.
17. REMOVE REAR ENGINE MOUNTING MEMBER
(a) Remove the 4 bolts and nuts.
Torque:
Nut: 13 NVm (135 kgfVcm, 10 ftVlbf)
Bolt: 25 NVm (260 kgfVcm, 19 ftVlbf)
(b) Remove the rear engine mounting member.
18. REMOVE ENGINE REAR MOUNTING
Remove the 3 bolts and engine rear mounting from the trans-
mission.
Torque: 25 NVm (250 kgfVcm, 18 ftVlbf)
19. REMOVE TRANSMISSION
(a) Remove the 3 remaining transmission mounting bolts.
Torque: 72 NVm (730 kgfVcm, 53 ftVlbf)
(b) Lower the engine rear side and remove the transmission from
the engine. MT1±10
± W58 MANUAL TRANSMISSIONASSEMBLY REMOVAL AND INSTALLATION

BASIC SUBASSEMBLY SEPARATION
Assembly is in the reverse order of separation.
1. REMOVE BACK±UP LIGHT SWITCH
Torque: 40 NVm (410 kgfVcm, 30 ftVlbf)
2. REMOVE VEHICLE SPEED SENSOR DRIVEN GEAR
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
3. REMOVE CLUTCH HOUSING FROM TRANSMISSION
CASE
Remove the 9 bolts and clutch housing from the transmission
case.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
4. REMOVE CONTROL SHIFT LEVER ARM, DUST BOOT
AND NO. 1 CONTROL SHIFT YOKE
(a) Remove the 3 mounting bolts and control shift lever arm.
Torque:
Bolt B: 25 NVm (250 kgfVcm, 18 ftVlbf)
Bolt C: 19 NVm (195 kgfVcm, 14 ftVlbf)
(b) Remove the dust boot.
(c) Remove the bolt and No. 1 control shift yoke from the control
shaft.
Torque:
Bolt A: 19 NVm (195 kgfVcm, 14 ftVlbf)
5. REMOVE CONTROL SHIFT LEVER RETAINER
ASSEMBLY
(a) Remove the 6 bolts.
Torque: 18 NVm (185 kgfVcm, 13 ftVlbf)
(b) Remove the control shift lever retainer assembly and oil
deflector.
6. REMOVE 2 RESTRICT PINS
INSTALLATION HINT: Install the black pin on the reverse
gear/5th gear side.
Torque: 40 NVm (410 kgfVcm, 30 ftVlbf)
7. REMOVE EXTENSION HOUSING
(a) Remove the shift lever housing set bolt.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
± W58 MANUAL TRANSMISSIONCOMPONENT PARTS REMOVALMT1±13

 Rear bearing Mark 7 2.26±2.31 mm (0.0890±0.0909 in.)
 Oil seal drive in depth 
  Front bearing retainer (from retainer end) 11.4±12.0 mm (0.449±0.472 in.)
  Control shift lever retainer 55.4±56.0 mm (2.181±2.205 in.)
TORQUE SPECIFICATIONS
 Part tightened NVm kgfVcm ftVlbf
 Transmission x Engine   
 12 mm bolt 72 730 53 10 mm bolt 37 380 27 Engine rear mounting x Transmission 25 250 18 Rear engine mounting member   
 Nut 13 135 10 Bolt 25 260 19 Transmission x Starter 39 400 29 Clutch release cylinder set bolt 13 130 9 
Transmission shift lever x Transmission
 
19
 
195
 
14 
Propeller shaft x Differential
 
93

950
 
69 
 Propeller shaft center bearing
 


49

 500
 
 36
 Crossmember brace set bolt 13 130 9
 Heat insulator set nut 5.4 55 48 in.Vlbf
 Exhaust center pipe x Tail pipe 19 195 14
 Exhaust front pipe x Exhaust center pipe 43 440 32
 Exhaust pipe support bracket set bolt 37 380 27
 Exhaust No.2 front pipe x Exhaust front pipe 43 440 32
 Oxygen sensor set nut 18 180 13
 Shift lever x Control shift lever arm 7.8 80 69 in.Vlbf
 Shift fork set bolt 20 200 14
 Straight screw plug 25 250 18
 Reverse idler gear shaft stopper bolt 25 250 18
 Oil separator x Intermediate plate 18 185 13
 Front bearing retainer set bolt 25 250 18
 Extension housing x Intermediate plate 37 380 27
 Restrict pin 40 410 30
 Shift lever housing x Shift and select lever shaft 39 400 29
 Control shift lever retainer x Extension housing 18 185 13
 No.2 inner shift lever x Control shaft 39 400 29
 No.1 control shift yoke x Control shaft 19 195 14 Drain and filler plugs 39 400 29 Back±up light switch 40 410 30 Control shift lever arm x Control shift lever retainer 25 250 18 Control shift lever arm x Extension housing 19 195 14 Clutch housing x Transmission case 37 380 27 Rear bearing retainer x Intermediate plate 18 185 13
MT1±48± W58 MANUAL TRANSMISSIONSERVICE SPECIFICATIONS

(09316±00050) Replacer ªDº
09330±00021Companion Flange Holding Tool
09608±30022 Front Hub Bearing Replacer Set
(09608±05010) Handle
09816±30010 Oil Pressure Switch Socket
09843±18020 Diagnosis Check Wire
09950±50010 Puller C Set
(09951±05010)Hanger 150
(09952±05010) Slide Arm
(09953±05020) Center Bolt 150
(09954±05010)Claw No.1
(09954±05030)Claw No.3
09960±10010 Variable Pin Wrench Set
(09962±01000) Variable Pin Wrench Arm AssyCamshaft timing pulley
Camshaft pulley
Crankshaft timing pulley
Crankshaft pulley
Crankshaft timing pulley
Crankshaft pulley
Crankshaft timing pulley
Crankshaft pulley
Crankshaft timing pulley
Knock sensor
Oil pressure switch
Crankshaft rear oil seal
Valve guide bushing
Crankshaft pulley
Camshaft oil seal
EG±4± ENGINEENGINE MECHANICAL

Troubleshooting
If the CO/HC concentration does not comply with regulations,
troubleshoot in the order given below.
(a) Check (main heated) oxygen sensors operation.
(See oxygen sensor(s) inspection in SFI System)
(b) See the table below for possible causes, and then inspect
and correct the applicable causes if necessary.
 CO HC Phenomenon Causes
 
 
 
 
 
 
 
 
Normal 
 
 
 
 
 
 
 
High 
 
 
 
 
 
 
 
Rough idle 
 
 
 
 
 
 
 
1. Faulty ignitions:

Incorrect timing

Fouled, shorted or improperly gapped plugs

Open or crossed high±tension cords (2JZ±GE)

Cracked distributor cap (2JZ±GE)
2. Incorrect valve clearance
3. Leaky EGR valve
4. Leaky intake and exhaust valves
5. Leaky cylinder
 
 
 
 
 
 
 
 
Low 
 
 
 
 
 
 
 
High 
 
 
 
 
 
 
 
Rough idle
(Fluctuating HC reading) 
 
 
 
 
 
 
 
1. Vacuum leaks:

PCV hose

EGR valve

Intake manifold

Air intake chamber

Throttle body

IAC valve

Brake booster line
2. Lean mixture causing misfire
 
 
 
 
 
 
 
 
 
 
High 
 
 
 
 
 
 
 
 
 
High 
 
 
 
 
 
 
 
 
 
Rough idle
(Black smoke from exhaust) 
 
 
 
 
 
 
 
 
 
1. Restricted air filter
2. Faulty SFI systems:

Faulty fuel pressure regulator

Clogged fuel return line

Defective ECT switch

Defective turbo pressure sensor (2JZ±GTE)

Faulty ECM

Faulty injector

Faulty throttle position sensor

Faulty VAF meter (2JZ±GE)

Faulty MAF meter (2JZ±GTE)
EG±8± ENGINEENGINE MECHANICAL

COMPRESSION CHECK
HINT: If there is lack of power, excessive oil consumption or
poor fuel economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating tempera-
ture.
2. 2JZ±GE:
DISCONNECT DISTRIBUTOR CONNECTOR
3. 2JZ±GTE:
DISCONNECT CAMSHAFT POSITION SENSOR CON-
NECTORS
4. 2JZ±GE:
DISCONNECT HIGH±TENSION CORDS FROM SPARK
PLUGS
(See high±tension cords and cord clamps removal in
Ignition System)
5. 2JZ±GTE:
REMOVE IGNITION COILS ASSEMBLIES
(See ignition coils removal in Ignition System)
6. REMOVE SPARK PLUGS
7. CHECK CYLINDER COMPRESSION
(a) Insert a compression tester into the spark plug hole.
(b) Wh ile cra n kin g th e en g in e , me a su re th e co mp re ssio n
pressure.
HINT: Always use a fully charged battery to obtain engine rev-
olutions of 250 rpm or more.
(c) Repeat steps (a) through (b) for each cylinder.
NOTICE: This measurement must be done in as short a time as
possible.
Standard pressure:
2JZ±GE
1,275 kPa (13.0 kgf/cm
2, 185 psi) or more
2JZ±GTE
1,079 kPa (11.0 kgf/cm
2, 156 psi) or more
Minimum pressure:
2JZ±GE
1,079 kPa (11.0 kgf/cm
2, 156 psi)
2JZ±GTE
883 kPa (9.0 kgf/cm
2, 128 psi)
Difference between each cylinder:
98 kPa (1.0 kgf/cm
2, 14 psi) or less
(d) If the cylinder compression in 1 or more cylinders is low, pour
a small amount of engine oil into the cylinder through the
spark plug hole and repeat steps (a) through (b) for the
cylinder with low compression.
± ENGINEENGINE MECHANICALEG±9

wIf adding oil helps the compression, it is likely that the
piston rings and/or cylinder bore are probably worn or
damaged.
wIf pressure stays low, a valve may be sticking or seating
improper, or there may be leakage past the gasket.
8. REINSTALL SPARK PLUGS
9. 2JZ±GE:
RECONNECT HIGH±TENSION CORDS TO SPARK
PLUGS
(See high±tension cords and cord clamps installation in
Ignition System)
10. 2JZ±GTE:
REINSTALL IGNITION COILS ASSEMBLIES
(See ignition coils installation in Ignition System)
11. 2JZ±GE:
RECONNECT DISTRIBUTOR CONNECTOR
12. 2JZ±GTE:
RECONNECT CAMSHAFT POSITION SENSOR CONNEC-
TORS EG±10
± ENGINEENGINE MECHANICAL

CYLINDER HEAD REMOVAL (2JZ±GE)
1. REMOVE ENGINE UNDER COVER
2. DRAIN ENGINE COOLANT
3. REMOVE AIR CLEANER DUCT
4. REMOVE AIR CLEANER, VAF METER AND INTAKE AIR
CONNECTOR PIPE ASSEMBLY
(See step 6 in engine removal in Engine Mechanical)
5. REMOVE DRIVE BELT
Loosen the drive belt tension by turning the drive belt tension-
er clockwise, and remove the drive belt.
6. REMOVE NO.2 FRONT EXHAUST PIPE
(See step 22 in engine removal in Engine Mechanical)
7. REMOVE EXHAUST MANIFOLDS
(a) Except California:
Remove the 4 nuts and manifold heat insulator.
(b) Disconnect the 2 (main heated) oxygen sensor connectors.
(c) Remove the 4 nuts, exhaust manifold and gasket.
Remove the No.1 and No.2 exhaust manifolds.
8. DISCONNECT PS PUMP WITHOUT
DISCONNECTING HOSES
(a) Disconnect these hoses:
(1) Air hose from No.4 timing belt cover
(2) Air hose from air intake chamber
(b) Remove the 2 bolts, and disconnect the pump housing from
the pump bracket.
HINT: Put aside the pump housing, and suspend it.
(c) Remove the 2 bolts and pump rear stay.
9. DISCONNECT BRAKE BOOSTER VACUUM HOSE
10. DISCONNECT EVAP HOSE
11. REMOVE THROTTLE BODY AND INTAKE AIR
CONNECTOR ASSEMBLY
(See injector removal in SFI System)
± ENGINEENGINE MECHANICALEG±41

23. REMOVE OIL DIPSTICK GUIDES FOR ENGINE AND
TRANSMISSION
(a) Remove the 2 bolts.
(b) Pull out the dipstick guide together with the dipstick.
(c) Remove the O±ring from the dipstick guide.
24. REMOVE STARTER
(See starter removal in Starting System)
25. REMOVE AIR INTAKE CHAMBER
(a) Except California:
Disconnect the vacuum sensing hose from the fuel pressure
regulator.
(b) Remove the bolt holding the engine wire protector to the the
air intake chamber.
(c) Remove the 5 bolts, nut, air intake chamber and gasket.
26. REMOVE VACUUM CONTROL VALVE SET
(a) Disconnect the VSV connector.
(b) Remove the 2 nuts and vacuum control valve set.
27. DISCONNECT ENGINE WIRE
(a) Remove the bolt, and disconnect the engine wire bracket
from the water pump.
(b) Remove the 2 bolts, and disconnect the 2 ground straps from
the intake manifold.
(c) Remove the 2 bolts, and disconnect the 2 wire clamps from
the intake manifold.
(d) Disconnect these connectors:
w6 injector connectors
wECT sensor connector
wECT sender gauge connector
± ENGINEENGINE MECHANICALEG±43

4. REMOVE DRIVE BELT
Loosen the drive belt tension by turning the drive belt tension-
er clockwise, and remove the drive belt.
5. REMOVE WATER OUTLET AND NO.1 WATER BYPASS
PIPE
(a) Disconnect the upper radiator hose from the water outlet.
(b) Disconnect the ECT sensor and sender gauge connectors.
(c) Remove the 2 bolts, water outlet and gasket.
(d) Remove the No.1 water bypass pipe and 2 O±rings.
6. DISCONNECT PS PUMP WITHOUT DISCONNECTING
HOSES
(a) Disconnect these hoses:
(1) Air hose from throttle body
(2) Air hose from air intake chamber
(b) Remove the 2 bolts, and disconnect the pump housing from
the pump bracket.
HINT: Put aside the pump housing, and suspend it securely.
7. DISCONNECT FUEL RETURN HOSE
Disconnect the fuel return hose from the fuel return pipe. Plug
the hose end.
8. REMOVE AIR INTAKE CHAMBER ASSEMBLY
(See injector removal in SFI System)
± ENGINEENGINE MECHANICALEG±47