oil dipstick TOYOTA SUPRA 1986 Service Repair Manual

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

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

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)

Vacuum Tank
COMPONENTS FOR REMOVAL AND
INSTALLATION
VACUUM TANK REMOVAL
Installation is in the reverse order of removal.
1. 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.
2. REMOVE VACUUM TANK AND VSV ASSEMBLY
(a) Remove the 2 nuts, and disconnect the vacuum tank from the
intake manifold.
Torque: 21 NVm (210 kgfVcm, 15 ftVlbf)
± ENGINESFI SYSTEM (2JZ±GE)EG±229

INTAKE AIR CONTROL VALVE REMOVAL
Installation is in the reverse order of removal.
1. REMOVE VSV FOR FUEL PRESSURE CONTROL
(a) Disconnect the connector and hoses:
(1) VSV connector
(2) Vacuum sensing hose from fuel pressure control
(3) Vacuum sensing hose from air intake chamber
2. 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.
3. 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.
4. REMOVE EGR PIPE
(a) Loosen the union nut of the EGR pipe.
Torque: 64 NVm (650 kgfVcm, 47 ftVlbf)
(b) Remove the 2 bolts, EGR pipe and gasket.
Torque: 27 NVm (270 kgfVcm, 20 ftVlbf)
5. DISCONNECT EGR GAS TEMPERATURE SENSOR
CONNECTOR
(a) Disconnect the connector from the No.2 vacuum pipe.
(b) Disconnect the sensor connector from the wiring connector.
6. DISCONNECT NO.2 VACUUM PIPE FROM AIR INTAKE
CHAMBER AND INTAKE MANIFOLD
Remove the 2 nuts, and disconnect the vacuum pipe from the
air intake chamber and intake manifold.
Torque: 27 NVm (270 kgfVcm, 20 ftVlbf)
EG±232± ENGINESFI SYSTEM (2JZ±GE)

12. REMOVE AIR INTAKE CHAMBER STAYS
(a) Remove the bolt, nut and No.1 stay.
(b) Remove the bolt, nut and No.2 stay.
13. REMOVE NO.2 VACUUM PIPE AND VSV ASSEMBLY
14. REMOVE NO.3 TIMING BELT COVER
(a) Remove the oil filler cap.
(b) Using a 5 mm hexagon wrench, remove the 6 bolts and timing
belt cover.
15. REMOVE CYLINDER HEAD REAR COVER
Using a 5 mm hexagon wrench, remove the 4 bolts and cylin-
der head rear cover.
16. D I S C O N N E C T H I G H ± T E N S I O N C O R D S F R O M
CYLINDER HEAD COVERS
(See step 4 in high±tension cords and cord clamps re-
moval in Ignition System)
17. REMOVE DISTRIBUTOR AND CORDS ASSEMBLY
(See steps 1 to 3 in distributor removal in Ignition Sys-
tem)
18. REMOVE SPARK PLUGS
19. RE MO V E TIMING BE LT FRO M CAMS HAFT TIMING
PULLEYS
(See steps 5 to 8 in timing belt removal)
NOTICE:
wSupport the timing belt, so that the meshing of the crank-
shaft timing pulley and timing belt does not shift.
wBe careful not to drop anything inside the timing belt cov-
er.
wDo not allow the timing belt to come into contact with oil,
water or dust.
20. REMOVE WATER BYPASS OUTLET AND NO.1 WATER
BYPASS PIPE
(See step 13 in water pump removal in Cooling System)
21. DISCONNECT FUEL RETURN HOSE
(a) Disconnect the fuel return hose from the fuel return pipe. Plug
the hose end.
(b) Disconnect the fuel return hose from the oil dipstick guide.
22. REMOVE ENGINE WIRE BRACET
Remove the bolt and bracket, disconnect the engine wire the
intake manifold stay. EG±42
± ENGINEENGINE MECHANICAL

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

8. 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.
9. INSTALL FUEL PRESSURE PULSATION DAMPER
(See fuel pressure pulsation damper installation in SFI
System)
10. INSTALL INTAKE MANIFOLD STAY
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
11. INSTALL WATER OUTLET AND NO.1 BYPASS HOSE
ASSEMBLY
12. CONNECT ENGINE WIRE
(a) Install the engine wire protector to the intake manifold with
the 3 nuts.
(b) Connect these connectors:
w6 injector connectors
HINT: The No.1, No.3 and No.5 injector connectors are dark
gray, and the No.2, No.4 and No.6 injector connectors are
gray.
wECT sensor connector
wECT sender gauge connector
(c) Install the 2 wire clamps to the intake manifold with the bolts.
(d) Install the 2 ground straps to the intake manifold with the
bolts.
(e) Install the engine wire bracket to the water pump with the bolt.
13. INSTALL VACUUM CONTROL VALVE SET
Torque: 21 NVm (210 kgfVcm, 15 ftVlbf)
14. INSTALL AIR INTAKE CHAMBER
(a) Install a new gasket and the intake chamber with the 5 bolts
and nut.
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
(b) Install the bolt holding the engine wire protector to the air
intake chamber.
(c) Except California:
Connect the vacuum sensing hose to the fuel pressure regu-
lator.
15. INSTALL STARTER
(See starter removal in Starting System)
16. INS TALL OIL DIP S TICK GUIDE S FO R ENG INE AND
TRANSMISSION
(a) Install a new O±ring to the dipstick guide.
(b) Apply soapy water to the O±ring.
(c) Connect the dipstick guide end to the oil pan.
(d) Install the 2 dipstick guides with the 2 bolts.
17. INSTALL ENGINE WIRE BRACKET
18. CONNECT FUEL RETURN HOSE
± ENGINEENGINE MECHANICALEG±67

13. DISCONNECT FUEL HOSES
(a) Remove the union bolt and 2 gaskets, disconnect the fuel
inlet hose.
HINT:
wPut a suitable container or shop rag under the fuel pipe
support.
wSlowly loosen the union bolt.
(b) Suspend the hose union end upward.
(c) Disconnect the fuel return hose from the oil dipstick guide.
(d) Disconnect the fuel return hose from the fuel return hose.
Plug the hose end.
14. REMOVE ENGINE WIRE BRACKET
Remove the bolt and bracket, and disconnect the engine wire
from the intake manifold stay.
15. DISCONNECT PS PUMP WITHOUT DISCONNECTING
HOSES
(a) Remove the 3 bolts, plate washer and pump front bracket.
(b) Disconnect these hoses:
(1) Air hose from No.4 timing belt cover
(2) Air hose from air intake chamber
(c) Disconnect the pump housing from the pump bracket.
HINT: Put aside the pump housing, and suspend it.
(d) Remove the 2 bolts and pump rear stay.
(e) Remove the 2 bolts and pump bracket. EG±80
± ENGINEENGINE MECHANICAL

ENGINE & TRANSMISSION SEPARATION
1. A/T:
REMOVE OIL DIPSTICK GUIDE FOR TRANSMISSION
(a) Remove the bolt.
(b) Pull out the dipstick and guide from the transmission.
(c) Remove the O±ring from the dipstick guide.
2. DISCONNECT ENGINE WIRE FROM TRANSMISSION
(a) Disconnect the connectors.
(b) Disconnect the wire clamps from the brackets.
3. REMOVE STARTER
(a) Disconnect the starter connector.
(b) Remove the 2 bolts, engine wire bracket and starter.
4. 2JZ±GE A/T:
DISCONNECT THROTTLE CABLE
(a) Disconnect the throttle cable from the throttle body.
(b) Disconnect the throttle cable from the cable bracket on the
cylinder head.
5. A/T:
REMOVE OIL COOLER TUBES FOR TRANSMISSION
(a) Remove the 2 hose clamp bolts and tube clamp bolt.
(b) Loosen the 2 union nuts, and remove the oil cooler tubes.
EG±94± ENGINEENGINE MECHANICAL