1995 TOYOTA SUPRA ignition

(d) Install the seal washers to the mounting bolts.
(e) Install the No.2 cylinder head cover with the 4 seal washers
and 4 bolts.
Torque: 5.4 NVm (55 kgfVcm, 48 in.Vlbf)
(f) Install the No.1 cylinder head cover with the 4 seal washers
and 4 bolts.
Torque: 5.4 NVm (55 kgfVcm, 48 in.Vlbf)
(g) Install the PCV valve.
(h) Install the cruise control actuator cable bracket and IAC valve
pipe clamp with the 2 bolts.
7. INSTALL SPARK PLUGS
8. INSTALL IGNITION COILS ASSEMBLIES
(See ignition coils installation in Ignition System)
9. INSTALL TIMING BELT
(See steps 11 to 17 in timing belt installation)
10. INS TALL INTAKE MANIFO LD AND DE LIV E RY PIP E
ASSEMBLY
Install a new gasket, the intake manifold, delivery pipe as-
sembly and engine wire bracket with the 4 bolts and 2 nuts.
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
11. INSTALL FUEL INLET PIPE
(a) Connect the fuel inlet pipe with 2 new gaskets and the union
bolt.
Torque: 42 NVm (420 kgfVcm, 30 ftVlbf)
(b) Install the clamp bolt to the intake manifold.
12. INSTALL FUEL PRESSURE PULSATION DAMPER
(See fuel pressure pulsation damper installation in SFI
System)
13. INSTALL PRESSURE TANK AND VSV ASSEMBLY
Torque: 21 NVm (210 kgfVcm, 15 ftVlbf)
14. INSTALL STATER
(See starter installation in Starting System)
15. CONNECT ENGINE WIRE
(a) Install the engine wire protector to the intake manifold with
the nut.
(b) Install the 2 ground straps to the intake manifold with the
bolts.
(c) Connect these connectors and clamps:
wVSV connector fo EVAP EG±70
± ENGINEENGINE MECHANICAL

ENGINE REMOVAL (2JZ±GE)
1. REMOVE HOOD
2. REMOVE RADIATOR ASSEMBLY
(See radiator removal in Cooling System)
3. DRAIN ENGINE OIL
4. DRAIN FUEL FROM FUEL TANK
5. DISCONNECT CONTROL CABLES FROM THROTTLE
BODY
Disconnect these cables:
wAccelerator cable
wCruise control actuator cable
6. REMOVE AIR CLEANER, VAF METER AND INTAKE AIR
CONNECTOR PIPE ASSEMBLY
(a) Disconnect the high±tension cord from the ignition coil.
(b) Disconnect the high±tension cord from the clamp on the air
cleaner.
(c) Disconnect the VAF meter connector.
(d) Disconnect the engine wire from the VAF meter.
(e) Disconnect these hoses:
(1) PS air hose from No.4 timing belt cover
(2) PCV hose from No.2 cylinder head cover
(f) Loosen the hose clamp bolt holding the intake air connector
pipe to the throttle body.
(g) Remove the 3 bolts, air cleaner, VAF meter and intake air
connector pipe assembly.
7. REMOVE DRIVE BELT, FAN, FLUID COUPLING
ASSEMBLY AND WATER PUMP PULLEY
(See step 6 in water pump removal in Cooling System)
8. REMOVE CHARCOAL CANISTER
9. DISCONNECT HEATER WATER HOSES
10. DISCONNECT BRAKE BOOSTER VACUUM HOSE
11. DISCONNECT EVAP HOSE
12. DISCONNECT WIRES AND CONNECTORS
(a) Disconnect the noise filter connector.
(b) Disconnect the ignition coil connector.
(c) Disconnect the engine wire from the wire clamp. EG±78
± ENGINEENGINE MECHANICAL

13. INSTALL PS PUMP
(a) Install the pump bracket with the 2 bolts.
Torque:
A 58 NVm (590 kgfVcm, 43 ftVlbf)
B 39 NVm (400 kgfVcm, 29 ftVlbf)
(b) Install the pump rear stay with the 2 bolts.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(c) Install the pump housing to the pump bracket.
(d) Connect the following hoses:
wAir hose to No.4 timing belt cover
wAir hose to air intake chamber
(e) Install the front pump bracket with the 2 bolts (A).
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
(f) Install the plate washer and bolt (B) to the oil pump.
Torque: 52 NVm (530 kgfVcm, 38 ftVlbf)
14. INSTALL ENGINE WIRE BRACKET
15. CONNECT FUEL HOSES
(a) Connect the fuel return hose to the fuel return pipe.
(b) Install the fuel return hose to the clamp of the oil dipstick
guide.
(c) Install the fuel inlet hose with 2 new gaskets and the union
bolt.
Torque: 29 NVm (300 kgfVcm, 22 ftVlbf)
16. CONNECT WIRES AND CONNECTORS
17. CONNECT EVAP HOSE
18. CONNECT BRAKE BOOSTER VACUUM HOSE
19. CONNECT HEATER HOSES
20. INSTALL CHARCOAL CANISTER
21. INSTALL WATER PUMP PULLEY, FAN, FLUID COUPLING
ASSEMBLY AND DRIVE BELT
(See step 10 in water pump installation in Cooling Sys-
tem)
22. INSTALL AIR CLEANER, VAF METER AND INTAKE AIR
CONNECTOR PIPE ASSEMBLY
23. CONNECT CONTROL CABLES TO THROTTLE BODY
24. FILL WITH FUEL
25. FILL WITH ENGINE OIL
26. CHECK IGNITION TIMING
(See ignition timing inspection and adjustment)
27. INSTALL RADIATOR ASSEMBLY
(See radiator installation in Cooling System)
28. START ENGINE AND CHECK FOR LEAKS
29. INSTALL HOOD
30. ROAD TEST VEHICLE
Check for abnormal noise, shock slippage, correct shift
points and smooth operation.
31. RECHECK ENGINE COOLANT AND ENGINE OIL LEVELS EG±128
± ENGINEENGINE MECHANICAL

31. CHECK IGNITION TIMING
(See ignition timing inspection)
32. INSTALL RADIATOR ASSEMBLY
(See radiator installation in Cooling System)
33. INSTALL HOOD
34. ROAD TEST VEHICLE
Check for abnormal noise, shock slippage, correct shift
points and smooth operation.
35. RECHECK ENGINE COOLANT AND ENGINE OIL LEVELS EG±132
± ENGINEENGINE MECHANICAL

SERVICE SPECIFICATIONS
SERVICE DATA
 
 
 
 
 
Compression
pressure 
 
 
 
 
at 250 rpm STD 2JZ±GE
2JZ±GTE
Minimum 2JZ±GE
2JZ±GTE
Difference of pressure between each cylinder 
 
 
 
 
1,275 kPa (13.0 kgf/cm2, 185 psi) or more
1,079 kPa (11.0 kgf/cm2, 156 psi) or more
1,079 kPa (11.0 kgf/cm
2, 156 psi)
883 kPa (9.0 kgf/cm
2, 128 psi)
98 kPa (1.0 kgf/cm2, 14 psi) or less
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Valve
clearance 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
at cold Intake
Exhaust
Adjusting shim (for repair part) Mark 2500
Mark 2.550
Mark 2.600
Mark 2.650
Mark 2.700
Mark 2.750
Mark 2.800
Mark 2.850
Mark 2.900
Mark 2.950
Mark 3.000
Mark 3.050
Mark 3.100
Mark 3.150
Mark 3.200
Mark 3.250
Mark 3.300 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0.15±0.25 mm (0.006±0.010 in.)
0.25±0.35 mm (0.010±0.014 in.)
2.500 mm (0.0984 in.)
2.550 mm (0.1004 in.)
2.600 mm (0.1024 in.)
2.650 mm (0.1043 in.)
2.700 mm (0.1063 in.)
2.750 mm (0.1083 in.)
2.800 mm (0.1102 in.)
2.850 mm (0.1122 in.)
2.900 mm (0.1142 in.)
2.950 mm (0.1161 in.)
3.000 mm (0.1181 in.)
3.050 mm (0.1201 in.)
3.100 mm (0.1220 in.)
3.150 mm (0.1240 in.)
3.200 mm (0.1260 in.)
3.250 mm (0.1280 in.)
3.300 mm (0.1299 in.)
 Ignition timing w/ Terminals TE1 and E1 connected of DLC1 105 BTDC @ idle
 
 Idle speed 
 2JZ±GE
2JZ±GTE 
 700 + 50 rpm
650 + 50 rpm
 
 
 
Intake
Manifold
Vacuum 
 
 
at idle speed 2JZ±GE
2JZ±GTE 
 
 
66.6 kPa (500 mmHg, 19.7 in.Hg) or more
60 kPa (450 mmHg, 17.7 in.Hg) or more
 
 Timing belt
Tensioner 
 Protrusion (from housing side) 
 8.0±8.8 mm (0.315±0.346 in.)
 
 
 
 
 
 
 
 
 
 
 
 
Cylinder head 
 
 
 
 
 
 
 
 
 
 
 
Warpage
Cylinder block side Maximum
Intake manifold side Maximum
Exhaust manifold side Maximum
Valve guide bore diameter STD
O/S 0.05
Valve seat
Refacing angle
Contacting angle
Contacting width Intake
Exhaust
Cylinder head bolt diameter STD
Minimum 
 
 
 
 
 
 
 
 
 
 
 
0.10 mm (0.0039 in.)
0.10 mm (0.0039 in.)
0.10 mm (0.0039 in.)
10.985±11.006 mm (0.4325±0.4333 in.)
11.035±11.056 mm (0.4344±0.4353 in.)
155, 455, 605
455
1.0±1.4 mm (0.039±0.055 in.)
1.2±1.6 mm (0.047±0.063 in.)
10.8±11.0 mm (0.425±0.433 in.)
10.7 mm (0.421 in.)
± ENGINEENGINE MECHANICALEG±135

PRECAUTION
1. Before working on the fuel system, disconnect the
negative (±) terminal cable from the battery.
HINT: Any diagnostic trouble code retained by the computer
will be erased when the negative (±) terminal cable is discon-
nected.
Therefore, if necessary, read the diagnosis before discon-
necting the negative (±) terminal cable from the battery.
2. Do not smoke or work near an open flame when working
on the fuel system.
3. Keep gasoline away from rubber or leather parts.
MAINTENANCE PRECAUTIONS
1. PRECAUTION WHEN CONNECTING GAUGE
(a) Use ba tte ry as th e po we r so u rce fo r th e timin g lig h t,
tachometer, etc.
(b) Connect the tester probe of a tachometer to the terminal IG

of the DLC1.
2. IN EVENT OF ENGINE MISFIRE, FOLLOWING
PRECAUTIONS SHOULD BE TAKEN
(a) Check proper connection of battery terminals, etc.
(b) Handle high±tension cords carefully.
(c) After repair work, check that the ignition coil terminals and all
other ignition system lines are reconnected securely.
(d) When cleaning the engine compartment, be especially
careful to protect the electrical system from water.
3. PRECAUTIONS WHEN HANDLING OXYGEN SENSOR
(a) Do not allow oxygen sensor to drop or hit against an object.
(b) Do not allow the sensor to come into contact with water.
± ENGINESFI SYSTEM (2JZ±GE)EG±189

IF VEHICLE IS EQUIPPED WITH MOBIL
RADIO SYSTEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication sys-
tem, refer to the precaution in the IN section.
AIR INDUCTION SYSTEM
1. Separation of the engine oil dipstick, oil filler cap, PCV hose,
etc. may cause the engine to run out of tune.
2. Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will cause air suction and cause the engine to run out
of tune.
ELECTRONIC CONTROL SYSTEM
1. Before removing SFI wiring connectors, terminals, etc., first
disconnect the power by either turning the ignition switch
OFF or disconnecting the negative (±) terminal cable from the
battery.
HINT: Always check the diagnostic trouble code before dis-
connecting the negative (±) terminal cable from the battery.
2. When installing the battery, be especially careful not to
incorrectly connect the positive (+) and negative (±) cables.
3. Do not permit parts to receive a severe impact during removal
or installation. Handle all SFI parts carefully, especially the
ECM.
4. Do not be careless during troubleshooting as there are
numerous transistor circuits and even slight terminal contact
can cause further troubles.
5. Do not open the ECM cover.
6. When inspecting during rainy weather, take care to prevent
entry of water. Also, when washing the engine compartment,
prevent water from getting on the SFI parts and wiring
connectors.
7. Parts should be replaced as an assembly.
8. Care is required when pulling out and inserting wiring
connectors.
(a) Release the lock and pull out the connector, pulling on the
connectors.
(b) Fully insert the connector and check that it is locked. EG±190
± ENGINESFI SYSTEMS (2JZ±GE)

9. Use SST for inspection or test of the injector or its wiring
connector.
SST 09842±30070
FUEL SYSTEM
1. When disconnecting the high pressure fuel line, a large
amount of gasoline will spill out, so observe the following
procedures:
(a) Disconnect the fuel pump connector.
(b) Start the engine. After the engine has stopped on its own,
turn off the ignition switch.
(c) Put a container under the connection.
(d) Slowly loosen the connection.
(e) Disconnect the connection.
(f) Plug the connection with a rubber plug.
(g) Reconnect the fuel pump connector.
2. When connecting the flare nut or union bolt on the high
pressure pipe union, observe the following procedures:
Union Bolt Type:
(a) Always use a new gasket.
(b) Tighten the union bolt by hand.
(c) Tighten the union bolt to the specified torque.
Torque: 29 NVm (300 kgfVcm, 22 ftVlbf)
Flare Nut Type:
(a) Apply a light coat of engine oil to the flare nut, and tighten the
flare nut by hand.
(b) Using SST, tighten the flare nut to specified torque.
SST 09631±22020
Torque: 30 NVm (310 kgfVcm, 22 ftVlbf)
HINT: Use a torque wrench with a fulcrum length of 30 cm
(11.81 in.).
± ENGINESFI SYSTEM (2JZ±GE)EG±191