1995 TOYOTA SUPRA engine

5. INSPECT EXHAUST BYPASS VALVE OPERATION
(a) Plug one side of the actuator air hose end.
(b) Using SST, apply approx. 98 kPa (1.00 kgf/cm
2, 14.2 psi) of
pressure to the actuator.
SST 09992±00241
(c) Move the actuator push rod, and check that the exhaust
bypass valve is open.
If operation is not as specified, replace the No.2 turbocharger
assembly.
NOTICE: Never apply more than 187 kPa (1.91 kgf/cm2, 27.2
psi) of pressure to the actuator.
(d) Remove the plug from the actuator air hose end.
Intake Air Control Valve
INSPECT CONTROL VALVE OPERATION
(a) Using SST, apply approx. 49 kPa (0.50 kgf/cm
2, 7.1 psi) of
pressure to the actuator.
SST 09992±00241
(b) Move the actuator push rod, and check that the control valve
is open.
If operation is not as specified, replace the control valve as-
sembly.
Exhaust Gas Control Valve
INSPECT CONTROL VALVE FOR DAMAGE
Move the actuator push rod and control valve, and check the
control valve for damage.
If the valve is damaged, replace the control valve assembly.
Air Bypass Valve
INSPECT AIR BYPASS VALVE OPERATION
(a) Check that air does not flow from port A to B.
(b) Apply vacuum to the actuator.
(c) Check that air flows from port A to B.
If operation is not as specified, replace the valve.
± ENGINETURBOCHARGER SYSTEM (2JZ±GTE)EG±159

CHARGE AIR COOLER (CAC)
COMPONENTS FOR REMOVAL AND
INSTALLATION
EG±160± ENGINETURBOCHARGER SYSTEM (2JZ±GTE)

CAC REMOVAL
Installation is in the reverse order of removal.
1. REMOVE NO.1 AIR HOSE
2. REMOVE ENGINE UNDER COVER
3. w/o Auto Spoiler:
REMOVE NO.2 ENGINE UNDER COVER
4. REMOVE RH FRONT FENDER SPLASH SHIELD SEAL
5. w/ Auto Spoiler:
REMOVE RH ENGINE UNDER COVER
6. DISCONNECT AIR HOSE FROM CAC
(a) Remove the 2 bolts holding the No.2 air tube (3) to the body.
(b) Disconnect these hoses:
(1) No.2 air hose from CAC
(2) No.4 air hose from No.2 air tube
(3) No.3 air hose from CAC
(c) Remove the No.2 air tube (4).
7. REMOVE CAC AND CAC DUCT ASSEMBLY
w/o Auto Spoiler:
Remove the nut, 2 bolts and CAC.
Torque: 13 NVm (135 kgfVcm, 10 ftVlbf)
w/ Auto Spoiler:
(a) Fully turn the tire in the illustration direction.
(b) Remove the nut, 2 bolts and CAC.
Torque: 13 NVm (135 kgfVcm, 10 ftVlbf)
HINT: Remove the CAC between the suspension and body
at the illustrated angle of the CAC.
8. REMOVE CAC DUCT FROM CAC
Remove the 4 bolts and CAC duct.
Torque: 4.9 NVm (50 kgfVcm, 43 in.Vlbf)
± ENGINETURBOCHARGER SYSTEM (2JZ±GTE)EG±161

SERVICE SPECIFICATIONS
SERVICE DATA
 
 
 
Turbocharger 
 
 
Turbocharging pressure
Impeller wheel axial play Limit
Impeller wheel radial play Limit 
 
 
61±75 kPa (0.62±0.76 kgf/cm2, 8.8±10.8 psi)
0.162 mm (0.0064 in.)
0.110 mm (0.0045 in.)
TORQUE SPECIFICATIONS
 
 Part tightened 
 NVm 
 kgfVcm 
 ftVlbf
 Turbocharger x Turbine outlet elbow 25 250 18
 Turbo water pipe x Turbocharger 8.8 90 78 in.Vlbf
 Side bearing housing plate x Turbocharger 8.8 90 78 in.Vlbf
 No.2 air tube x No.2 turbocharger 21 210 15 
 Turbocharger x Exhaust manifold
 
 54
 
 550
 
 40
 Turbo oil pipe x Turbocharger 21 210 15
 Turbo oil pipe x Cylinder block 39 400 29
 Turbocharger stay x Turbocharger 43 440 32 
 Turbocharger stay x Cylinder block
 
 43
 
 440
 
 32
 Exhaust gas control valve x Turbine outlet elbow 69 700 51
 Main heated oxygen sensor x Exhaust gas control valve 20 200 14
 Exhaust gas control valve stay x Exhaust gas control valve 43 440 32 
 Exhaust gas control valve stay x Cylinder block
 
 43
 
 440
 
 32
 Exhaust bypass pipe x Turbine outlet elbow 25 250 18
 Exhaust bypass pipe x Exhaust gas control valve 25 250 18
 Intake air control valve x No.2 turbocharger 21 210 15 
No.4 air tube x No.1 turbocharger 
21 
210 
15 
 No.1 air tube x No.1 turbocharger
 
 21
 
 210
 
 15
 No.2 front exhaust pipe x Exhaust gas control valve 62 630 46
 Front exhaust pipe x No.2 front exhaust pipe 58 590 43
 Pipe support bracket x Transmission 43 440 32 
 
 
Upper front crossmember extension x Front suspension Bolt
Nut
 
 
 
29
33
 
 
 
300
340
 
 
 
22
25
 
 
Front lower arm bracket stay x Front suspension Bolt
Nut 
 
44
59 
 
450
600 
 
33
43
 CAC duct x CAC 4.9 50 43 in.Vlbf
 CAC x Body 13 135 10
EG±162± ENGINETURBOCHARGER SYSTEM (2JZ±GTE)

LY±
(Blue) (Yellow) Example: L±Y
Tab width
1.3 mm
Rubber
Plug
Rubber Ring
Housing Lance
Type
Terminal Lance
Type
INTRODUCTION±GENERAL INFORMATION
A±3
4
Wire Harness Repair Manual (RM1022E)
The first letter indicates the basic wire color and the second
letter indicates the color of the stripe.
Terminal and housing
Terminal connects wires and housing insulates connecting
parts.
There are the male terminal and the female terminal. The
types of terminals are decided by tab width of male
terminal. And the terminal with the rubber plug or the
rubber ring is used in the part, such as the engine
compartment, which become wet. For the circuit with slight
current at EFI system or ABS system, the gold±plated
terminal is introduced for ensuring reliabilities.
As the number of the circuit is increasing recently, there are
new types of parts introduced. For example, there is the
hybrid type housing, which is a combination of terminals
with different tab width, such as the power source terminal
or the signal terminal. Also, new type of connector such as
the double lock housing, which is designed with the
retainer in addition to the lance to prevent terminal from
slipping off, is available. The new type of connectors are
produced to realize higher product reliabilities and utilized
widely recently. The major characteristics of these new
connectors are shown in the table 1.
There are two types of lances: housing lance, which is
inside the housing and terminal lance, which is inside the
terminal.A

Sleeve Color MarksCrimping
Tool
ºCLOSE HEREº
Contact
ºINSº Position
10 mm (0.39 in.)
Three or More Times
TERMINAL AND CONNECTOR REPAIR±TERMINAL REPLACEMENT
B±30
40
Wire Harness Repair Manual (RM1022E)
(b)The crimping tool (AMP Part No. 169060) has color
marks on it. Place the sleeve in the correct section of
the tool according to the color of the sleeve itself.
HINT: For the crimping tool, AMP ºPart No. 169060º is
convenient to use.
(c)With the center of the sleeve correctly placed
between the crimping jaws, squeeze the crimping tool
until either end comes into contact at the section
marked by ºCLOSE HEREº.
HINT: Check to see that the sleeve and wires are still in
the correct position before closing the crimping tool ends
with steady pressure.
(d)Pull the joined wires to either end. Make sure that they
are joined firmly by the sleeve.
NOTICE:
If the joined wires come loose the splice is defective,
so replace the sleeve and repeat the procedure.
(e)Crimp both ends of the sleeve with the crimping tool
at the ºINSº position.
6. Protect Joined Section
Wrap silicon tape around the joins to protect them from
moisture.
NOTE: This job is required in repairs of the engine
compartment, under the floor and other moisture entry
positions.

Connector A
Connector B
Connector A
Lass than 1mmConnector B
Bolt
Cross±section of the bolt
TERMINAL AND CONNECTOR REPAIR±HOW TO INSTALL AND REMOVE SPECIAL CONNECTORS
B±52
62
Wire Harness Repair Manual (RM1022E)
Connector fixed by bolts
1. Area used

Engine control computer harness
2. Cut the connection of the connector.
(1)Remove the connector A.
(2)Loose the bolt using a tool like driver until the
connector B can be removed by hand and separate
the connector.
HINT: If the bolt can not be removed, roll it while pulling
forward.
3. Connection of the connector
(1)Temporarily fit the connector B.
(2)Tighten the bolt by using tool like driver and fit the
connector B completely.
NOTICE:

Tighten the bolt until feeling it lighter. Then confirm
that the width of chink of the connector B is less
than 1mm.

The bolt can be rolled after it is fitted.

If the impact wrench is used, do not let it rolling
more than three seconds. (The housing may be
deformed by generated heat)

Be sure and connect the connector B straight. Do
not incline it while connecting.
(3)Connect the connector A.