Lexus SC300 / Lexus SC400. Manual — part 504
RECOMMENDED TOOLS
Illustration
Part No.
Part Name
Note
09082–00015
TOYOTA
Electrical Tester
09200–00010
Engine Adjust
Kit
09258–00030
Hose Plug Set
Plug for the vacuum hose, fuel hose, etc.
EQUIPMENT
Part Name
Note
Graduted cylinder
Injector
Tachometer
Torque wrench
Soft brush
Carburetor cleaner
Throttle body
Stethoscope
Injector
Vacuum gauge
EQUIPMENT
Part Name
Note
Graduted cylinder
Injector
Tachometer
Torque wrench
Soft brush
Carburetor cleaner
Throttle body
Stethoscope
Injector
Vacuum gauge
FI–10
–
EFI SYSTEM
Preparation
Preparation
SST (SPECIAL SERVICE TOOLS)
Illustration
Part No.
Part Name
Note
09268–41045
Injection Measuring
Tool Set
(90268–41070)
No. 4 Union
Injector
(09268–41080)
No. 6 Union
Cold start Injector
(09268–52010)
Injection Measuring
Attachment
Injector
09268–45012
EFI Fuel Pressure
Gauge
09612–24014
Steering Gear
Housing Overhaul
Tool Set
(09617–24011)
Steering Rack Wrench
Fuel pressure pulsation damper
09631–22020
Power Steering
Hose Nut 14 X 17 mm
Wrench Set
Fuel line flare nut
09816–30010
Oil Pressure
Switch Socket
Knock sensor
09842–30055
Wire “G”
EFI Inspection
Cold start Injector
09842–30070
Wire “F”
EFI Inspection
Injector
09843–18020
Diagnosis Check
Wire
0990–01000
Engine Control
Computer
Check Harness “A”
FI–10
– Preparation
EFI SYSTEM
RECOMMENDED TOOLS
Illustration
Part No.
Part Name
Note
09082–0015
TOYOTA
Electrical Tester
09200–00010
Engine Adjust
Kit
09258–00030
Hose Plug Set
Plug for the Vacuum hose, fuel hose ect.
EQUIPMENT
Part Name
Note
Graduated cylinder
Injector
Tachometer
Torque wrench
SSM (SERVICE SPECIAL MATERIALS)
Part Name
Part No.
Use etc.
Seal packing 1282B,
08826–00100
Water inlet housing
Three bond 1282B or equivalent
FI–11
EFI SYSTEM – Preparation
PRECAUTIONS
1.
Before working on the fuel system, disconnect the cable
from negative (–) terminal of the battery.
HINT: Any diagnostic code retained by the computer will be
erased when the battery terminal is removed. Therefore, if
necessary, read the diagnosis before removing the battery
terminal.
CAUTION: Turn the ignition switch to ”LOCK”. Discon-
nect the cable from the negative (–) terminal of the bat-
tery. Wait at least 20 seconds before proceeding with
work.
2.
Do not smoke or work on open flame when working on
the fuel system.
3.
Keep gasoline away from rubber or leather parts.
INSPECTION PRECAUTIONS
MAINTENANCE PRECAUTIONS
1.
CHECK CORRECT ENGINE TUNE–UP
(See page
2.
PRECAUTIONS WHEN CONNECTING GAUGE
(a) Use the battery as the power source for the timing light,
tachometer, etc.
(b) Connect the test probe of a tachometer to the terminal
IG
of the check connector.
3. 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.
4.
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.
–
EFI SYSTEM
Precautions, Inspection Precautions
FI–11
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