sensor TOYOTA SUPRA 1995 Service Repair Manual

9. DISCONNECT ENGINE WIRE
(a) Disconnect these connectors and clamps:
(1) 6 injectors connectors
(2) 2 camshaft position sensor connectors
(3) 3 engine wire clamps from injector holders
(4) VSV connector for EVAP
(b) Remove the 2 bolts, and disconnect the 2 ground straps from
the intake manifold.
(c) Remove the nut, and disconnect the engine wire protector
from the intake manifold.
10. REMOVE STARTER
(See starter removal in Starting System)
11. REMOVE PRESSURE TANK AND VSV ASSEMBLY
(a) Disconnect the 2 vacuum hoses from the pressure tank.
(b) Remove the 2 nuts and pressure tank and VSV assembly.
12. REMOVE FUEL PRESSURE PULSATION DAMPER
(See step 2 in fuel pressure pulsation damper in SFI Sys-
tem)
13. REMOVE FUEL INLET PIPE
Remove the union bolt, 2 gaskets, clamp bolt and fuel inlet
pipe.
14. RE MO V E INTAKE MANIFO LD AND DE LIV E RY PIP E
ASSEMBLY
Remove the 4 bolts, 2 nuts, engine wire bracket, the intake
manifold, delivery pipe assembly and gasket. EG±48
± ENGINEENGINE MECHANICAL

15. REMOVE TIMING BELT FROM CAMSHAFT 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.
16. REMOVE IGNITION COILS ASSEMBLIES
(See steps 2 to 5 in ignition coils removal in Ignition Sys-
tem)
17. REMOVE SPARK PLUGS
18. REMOVE NO.1 AND NO.2 CYLINDER HEAD COVERS
(a) Remove the 2 bolts, cruise control actuator cable bracket and
IAC valve pipe clamp.
(b) Remove the PCV valve.
(c) Remove the 6 bolts, 2 nuts, 8 seal washers and No.1 cylinder
head cover and gasket.
(d) Remove the 6 bolts, 2 nuts, 8 seal washers and No.2 cylinder
head cover and gasket.
19. REMOVE CAMSHAFT TIMING PULLEYS
(See step 34 cylinder head removal (2JZ±GE))
20. REMOVE NO.4 TIMING BELT COVER
(See step 35 cylinder head removal (2JZ±GE))
21. REMOVE CAMSHAFTS
(See step 36 cylinder head removal (2JZ±GE))
22. REMOVE CYLINDER HEAD
(See step 37 cylinder head removal (2JZ±GE))
CYLINDER HEAD DISASSEMBLY
1. 2JZ±GE:
REMOVE ENGINE HANGERS
2. 2JZ±GE:
REMOVE ECT SENSOR AND SENDER GAUGE
3. 2JZ±GE:
REMOVE THROTTLE CABLE BRACKET AND GROUND
STRAP
± ENGINEENGINE MECHANICALEG±49

4. 2JZ±GTE:
REMOVE ENGINE HANGERS AND GROUND STRAP
5. 2JZ±GTE:
REMOVE CAMSHAFT POSITION SENSORS
6. REMOVE EGR COOLER
7. REMOVE VALVE LIFTERS AND SHIMS
HINT: Store the valve lifters and shims in correct order.
8. REMOVE VALVES
(a) Using SST, compress the valve spring and remove the 2
keepers.
SST 09202±70010
(b) Remove the spring retainer, valve spring, valve and spring
seat.
HINT: Store the valves, valve springs, spring seats and spring
retainers in correct order.
(c) Using needle±nose pliers, remove the oil seal.
CYLINDER HEAD COMPONENTS
INSPECTION AND REPAIR
1. CLEAN TOP SURFACES OF PISTONS AND CYLINDER
BLOCK
(a) Turn the crankshaft, and bring each piston to top dead center
(TDC). Using a gasket scraper, remove all the carbon from
the piston top surface. EG±50
± ENGINEENGINE MECHANICAL

(b) Install these parts:
(1) Valve
(2) Spring seat
(3) Valve spring
(4) Spring retainer
HINT: Install the valve spring, facing the painted mark up-
ward.
(c) Using SST, compress the valve spring and place the 2
keepers around the valve stem.
SST 09202±70010
(d) Using a plastic±faced hammer, lightly tap the valve stem tip
to ensure a proper fit.
3. INSTALL VALVE LIFTERS AND SHIMS
(a) Install the valve lifter and shim.
(b) Check that the valve lifter rotates smoothly by hand.
4. INSTALL EGR COOLER
Install a new gasket and the EGR cooler with the 8 bolts.
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
5. 2JZ±GE:
INSTALL ECT SENSOR AND SENDER GAUGE
Torque: 20 NVm (200 kgfVcm, 14 ftVlbf)
6. 2JZ±GE:
INSTALL GROUND STRAP AND THROTTLE CABLE
BRACKET
7. 2JZ±GE:
INSTALL ENGINE HANGERS
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
± ENGINEENGINE MECHANICALEG±61

8. 2JZ±GTE:
INSTALL CAMSHAFT POSITION SENSORS
Install the gasket and sensor with the 2 bolts.
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
9. 2JZ±GTE:
INSTALL ENGINE HANGERS AND GROUND STRAP
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
CYLINDER HEAD INSTALLATION
(2JZ±GE)
1. INSTALL CYLINDER HEAD
A. Place cylinder head on cylinder block
(a) Place a new cylinder head gasket in position on the cylinder
block.
NOTICE: Be sure to install it correctly.
(b) Place the cylinder head in position on the cylinder head
gasket.
B. Install cylinder head bolts
HINT:
wThe cylinder head bolts are tightened in 2 progressive
steps (steps (c) and (f)).
wIf any of bolts break or deform, replace them.
(a) Apply a light coat of engine oil on the threads and under the
heads of the cylinder head bolts.
(b) Install the 14 plate washers to each cylinder head bolt.
(c) Using a 10 mm bi±hexagon wrench, uniformly tighten the
cylinder head bolts, in several passes, in the sequence
shown.
Torque: 34 NVm (350 kgfVcm, 25 ftVlbf)
If any of the bolts do not meet the torque specification, re-
place the bolt.
(d) Mark the front of the cylinder head bolt head with paint. EG±62
± ENGINEENGINE MECHANICAL

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

19. INSTALL WATER BYPASS OUTLET AND NO.1 WATER
BYPASS PIPE
(See step 3 in water pump installation in Cooling System)
20. INSTALL TIMING BELT
(See steps 11 to 17 in timing belt removal)
21. INSTALL SPARK PLUGS
22. INSTALL DISTRIBUTOR AND CORDS ASSEMBLY
(See steps 2, 3 and 5 in distributor installation in Ignition
System)
23. CONNECT HIGH±TENSION CORDS TO CYLINDER HEAD
COVERS
(See step 1 in high±tension cords and cord clamps
installation in Ignition System)
24. INSTALL NO.3 TIMING BELT COVER
25. INSTALL CYLINDER HEAD REAR COVER
26. INSTALL NO.2 VACUUM PIPE AND VSV ASSEMBLY
27. INSTALL AIR INTAKE CHAMBER STAYS
HINT: The No.1 stay is marked with ºFº, and No.2 stay is
marked with ºRº.
(a) Install the No.1 stay with the bolt and nut.
Torque: 18 NVm (185 kgfVcm, 13 ftVlbf)
(a) Install the No.2 stay with the bolt and nut.
Torque: 18 NVm (185 kgfVcm, 13 ftVlbf)
28. I N S TA L L T H R OTTLE BODY AND INTAKE AIR
CONNECTOR ASSEMBLY
(See in injector removal in SFI System)
29. CONNECT EVAP HOSE
30. CONNECT BRAKE BOOSTER VACUUM HOSE
31. INSTALL PS PUMP
(a) Install the pump rear stay with the 2 bolts.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(b) Install the pump housing with the 2 bolts.
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
(c) Connect these hoses:
wAir hose to No.4 timing belt cover
wAir hose to air intake chamber
32. INSTALL EXHAUST MANIFOLDS
(a) Install a new gasket and the exhaust manifold with 4 new
nuts. Install the No.1 and No.2 exhaust manifolds.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(b) Connect the 2 (main heated) oxygen sensor connectors.
(c) Except California:
Install the manifold heat insulator with the 4 nuts. EG±68
± ENGINEENGINE MECHANICAL

w6 injectors 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.
w2 camshaft position sensor connectors
w3 engine wire clamps to injector holders
16. INSTALL AIR INTAKE CHAMBER ASSEMBLY
(See injector installation in SFI System)
17. CONNECT FUEL RETURN HOSE
18. INSTALL PS PUMP
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
19. INSTALL WATER OUTLET AND NO.1 WATER BYPASS
PIPE
(a) Install 2 new O±rings to the No.1 water bypass pipe.
(b) Apply soapy water to the O±rings.
(c) Install the No.1 water bypass pipe to the water pump.
(d) Install a new gasket and the water outlet with the 2 bolts.
Torque: 21 NVm (210 kgfVcm, 15 ftVlbf)
(e) Connect the ECT sensor and sender gauge connectors.
(f) Connect the upper radiator hose to the water outlet.
20. INSTALL DRIVE BELT
Install the drive belt by turning the drive belt tensioner clock-
wise.
21. M/T:
INSTALL DRIVE BELT TENSIONER DAMPER
(See step 19 in timing belt installation)
22. INSTALL EXHAUST MANIFOLD
(a) P la ce 2 ne w ga ske ts to th e cylinder head facing the
protrusion as shown.
(b) Install the exhaust manifold with 12 new nuts, in several
passes, in the sequence shown.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
23. INSTALL TURBOCHARGER
(See turbocharger installation in Turbocharger System)
± ENGINEENGINE MECHANICALEG±71

(c) Remove the 4 bolts holding the lever boot to the transmission
cover.
(d) Remove the shift & select lever boots.
(e) Remove the 4 bolts holding the shift lever to the shift lever
retainer.
22. M/T:
DISCONNECT CLUTCH RELEASE CYLINDER AND
GROUND STRAP FROM TRANSMISSION
(a) Remove the 2 bolts, and disconnect clutch release cylinder.
(b) Remove the bolt, and disconnect the clutch line tube.
(c) Remove the bolt, and disconnect ground strap.
23. DISCONNECT SUB HEATED OXYGEN SENSOR FROM
FRONT EXHAUST PIPE
Remove the 2 nuts and sensor cover, and disconnect oxygen
sensor and gasket.
24. REMOVE EXHAUST PIPE ASSEMBLY
(a) Remove the 2 bolts and nuts holding the front exhaust pipe
to the No.2 front exhaust pipe.
(b) Remove the 2 bolts and pipe support bracket.
(c) Remove the gasket, and disconnect the front exhaust pipe. EG±90
± ENGINEENGINE MECHANICAL

13. REMOVE OIL PRESSURE SWITCH AND KNOCK
SENSORS
Using SST, remove the switch and sensors.
SST 09816±30010
14. 2JZ±GTE:
REMOVE UNION FOR OIL COOLER HOSE
15. REMOVE ENGINE COOLANT DRAIN PLUG
16. R E M O V E R H E N G I N E M O U N T I N G B R A C K E T A N D
INSULATOR ASSEMBLY
17. 2JZ±GTE:
REMOVE CRANKSHAFT POSITION SENSOR
18. REMOVE WATER PUMP
(See water pump removal in Cooling System)
19. REMOVE OIL PUMP
(See oil pump removal in Lubrication System)
CYLINDER BLOCK DISASSEMBLY
1. REMOVE REAR OIL SEAL RETAINER
(a) Remove the 6 bolts.
(b) Remove the oil seal retainer by prying the area between the
oil seal retainer and main bearing cap with a screwdriver.
2. CHECK CONNECTING ROD THRUST CLEARANCE
Using a dial indicator, measure the thrust clearance while
moving the connecting rods back and forth.
Standard thrust clearance:
0.250±0.402 mm (0.0098±0.0158 in.)
Maximum thrust clearance:
0.50 mm (0.0197 in.)
If the thrust clearance is greater than maximum, replace the
connecting rod assembly(s). If necessary, replace the crank-
shaft.
Connecting rod thickness:
25.898±25.950 mm (1.0196±1.0217 in.)
3. REMOVE CONNECTING ROD CAPS AND CHECK OIL
CLEARANCE
(a) Check the matchmarks on the connecting rod and cap to
ensure correct reassembly.
± ENGINEENGINE MECHANICALEG±99