1995 TOYOTA SUPRA engine oil

 
 
 
Sub heated
oxygen sensor
(California
only) 
 
 
Heater coil resistance at 20°C (68°F) 
 
 
11±16

 
 Fuel cut rpm
 
 Fuel return rpm
 
 1,400 rpm
TORQUE SPECIFICATIONS
 Part tightened NVm kgfVcm ftVlbf
 
 
Fuel line for union bolt
for flare nut 
 
29
30 
 
300
310 
 
22
22
 Fuel pressure regulator x Delivery pipe 8.8 90 78 in.Vlbf
 Delivery pipe x Intake manifold 21 210 15
 Actuator for ACIS x Air intake chamber 6.8 70 61 in.Vlbf
 Fuel inlet pipe x Delivery pipe 41 420 30 Fuel return pipe x Fuel pressure regulator 27 280 20 Air intake chamber stay x Cylinder head 18 185 13 
Air intake chamber stay x Air intake chamber
 
18
 
185
 
13 
Intake air connector x Air intake chamber
 
27
 
270
 
20 
 Throttle body bracket x Throttle body
 
 21
 
 210
 
 15
 Throttle body bracket x Cylinder head 21 210 15
 No.2 vacuum pipe x Intake manifold 27 270 20
 EGR pipe x Cylinder head 27 270 20
 EGR pipe x EGR valve 64 650 47
 
 
Fuel pressure pulsation damper x Fuel pipe support
for SST 
 
41
35 
 
420
350 
 
30
25
 Starter x Transmission 39 400 29
 Fuel tank band x Body 39 400 29 VAF meter x Air cleaner case 10 100 7 Throttle body x Intake air connector 21 210 15 
Vacuum tank x Intake manifold
 
21
 
210
 
15 
Brake booster union x Air intake chamber
 
29
 
300
 
22 
 Air intake chamber x Intake manifold
 
 27
 
 270
 
 20
 EGR gas temperature sensor x EGR valve 20 200 14
 Knock sensor x Cylinder block 44 450 33
 Oxygen sensor (Except California) x Exhaust manifold 20 200 14
 Main heated oxygen sensor (California) x Exhaust manifold 44 450 33
 Sub heated oxygen sensor (California only) x Center exhaust pipe 20 200 14
± ENGINESFI SYSTEM (2JZ±GE)EG±257

SFI SYSTEM (2JZ±GTE)
PREPARATION
SST (SPECIAL SERVICE TOOLS)
09205±76030 Cylinder Head Setting Bolt
Tightening Adaptor
09268±41045Injection Measuring Tool Set
(09268±41070)No.4 Union
(90405±09015)No.1 Union
09268±45012 EFI Fuel Pressure Gauge
ECT sensor
09612±24014 Steering Gear Housing Overhaul
Tool Set
(09617±24011) Steering Rack Wrench
09631±22020 Power Steering Hose Nut
14 x 17 mm Wrench Set
09808±14010Fuel Sender Gauge Tool Assy
09816±30010 Oil Pressure Switch Socket
09842±30080 Wiring ªEº EFI Inspection
Knock sensor
Fuel pressure pulsation damper
09843±18020 Diagnosis Check Wire
Injector
Fuel line flare nut
EG±258± ENGINESFI SYSTEM (2JZ±GTE)

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) After repair work, check that the ignition coil terminals and all
other ignition system lines are reconnected securely.
(c) 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. EG±260
± ENGINESFI SYSTEM (2JZ±GTE)

IF VEHICLE IS EQUIPPED WITH MOBILE
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.
± ENGINESFI SYSTEM (2JZ±GTE)EG±261

9. Use SST for inspection or test of the injector or its wiring
connector.
SST 09842±30060
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.). EG±262
± ENGINESFI SYSTEM (2JZ±GTE)

3. Observe the following precautions when removing and
installing the injectors.
(a) Never reuse the O±ring.
(b) When placing a new O±ring on the injector, take care not to
damage it in any way.
(c) Coat a new O±ring with spindle oil or gasoline before
installing±never use engine, gear or brake oil.
4. Install the injector to the delivery pipe and intake manifold as
shown in the illustration.
5. Check that there are no fuel leaks after doing maintenance
anywhere on the fuel system.
(a) Using SST, connect terminals +B and FP of the DLC 1.
SST 09843±18020
(b) With engine stopped, turn the ignition switch ON.
(c) Pinch the fuel return hose.
The pressure in the high pressure line will rise to approx. 392
kPa (4 kgf/cm
2, 57 psi). In this state, check to see that there
are no leaks from any part of the fuel system.
NOTICE: Always pinch the hose. Avoid bending as it may
cause the hose to crack.
(d) Turn the ignition switch OFF.
(e) Remove the SST from the DLC1.
SST 09843±18020
± ENGINESFI SYSTEM (2JZ±GTE)EG±263

5. REMOVE FUEL PUMP AND SENDER GAUGE ASSEMBLY
(a) Disconnect the connector and hoses from the fuel pump
bracket:
(1) Fuel pump connector
(2) Fuel outlet hose
Remove the union bolt and 2 gaskets, and disconnect
the outlet hose.
(3) Fuel return hose
(4) Fuel breather hose
(b) Remove the retainer clamp.
(c) Using SST, loosen the retainer.
SST 09808±14010
(d) Remove the retainer, and disconnect the fuel pump and
sender gauge assembly from the fuel tank.
(e) Disconnect the fuel return hose from the return port of the fuel
pump bracket.
(f) Remove the fuel pump, sender gauge assembly and gasket.
FUEL PUMP INSPECTION
1. INSPECT FUEL PUMP RESISTANCE
Using an ohmmeter, measure the resistance between termi-
nals 4 and 5.
Resistance:
0.1±3.0
at 20°C (68°F)
If the resistance is not as specified, replace the fuel pump,
lead wire or fuel pump bracket.
2. INSPECT FUEL PUMP OPERATION
Connect a tester lead from terminal 4 of the connector to the
positive (+) terminal of the battery; connect another tester
lead from terminal 5 of the connector to the negative (±) termi-
nal of the battery.
NOTICE:
wThese tests must be performed quickly (within 10 se-
conds) to prevent the coil from burning out.
± ENGINESFI SYSTEM (2JZ±GTE)EG±267

INJECTORS REMOVAL
Installation is in the reverse order of removal.
1. REMOVE ENGINE UNDER COVER
2. REMOVE THROTTLE BODY
(See throttle body removal)
3. REMOVE OIL DIPSTICK AND GUIDE FOR A/T
(a) Remove the bolt.
(b) Pull out the dipstick guide together with the dipstick.
INSTALLATION HINT: Apply soapy water to the O±ring, and
push in the dipstick guide.
(c) Remove the O±ring from the dipstick guide.
INSTALLATION HINT: Use a new O±ring.
4. REMOVE OIL DIPSTICK AND GUIDE FOR ENGINE
(a) Disconnect the fuel return hose from the clamp of the dipstick
guide.
(b) Remove the bolt.
(c) Pull out the dipstick guide together with the dipstick.
INSTALLATION HINT: Apply soapy water to the O±ring, and
push in the dipstick guide.
(d) Remove the O±ring from the dipstick guide.
INSTALLATION HINT: Use a new O±ring.
5. REMOVE AIR INTAKE CHAMBER STAY
Remove the bolt, nut and chamber stay.
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
6. DISCONNECT CONTROL CABLE BRACKET FROM AIR
INTAKE CHAMBER
Remove the 2 bolts, and disconnect the cable bracket from
the air intake chamber.
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
7. DISCONNECT CONNECTORS AND HOSES
(a) Disconnect these connectors:
(1) IAC valve connector
(2) Turbo pressure sensor connector
(3) VSV connector for fuel pressure control
(4) VSV connector for EGR
(b) Remove the bolt, and disconnect the engine wire protector
from the body.
± ENGINESFI SYSTEM (2JZ±GTE)EG±275