Lexus GS300/400 (2000 year). Service manual - part 203

–

SERVICE SPECIFICATIONS

ENGINE MECHANICAL (2JZ–GE)

SS–9

165

Part tightened

N·m

kgf·cm

ft·lbf

Drive plate x Torque converter clutch

48

490

35

Rear support member x Engine rear mounting insulator

13.5

135

10

Front suspension crossmember x Engine mounting insulator

70

714

52

PS gear housing x Front suspension member

65

660

48

Sliding yoke x Steering intermediate shaft

35

360

26

Transmission control rod x Shift lever

13

130

9

Transmission control rod x Transmission

13

130

9

A/C compressor x Cylinder block

Stud bolt

Bolt and nut

26

52

265

530

19

38

Fuel inlet hose x Fuel pipe support

29

300

22

Front suspension member brace x Front suspension member

58

590

43

Front suspension member brace  x Strut bar bracket plate

58

590

43

Connecting rod cap x Connecting rod

1st

2nd

30

Turn 90

°

300

Turn 90

°

22

Turn 90

°

Main bearing cap x Cylinder block

1st

2nd

45

Turn 90

°

450

Turn 90

°

33

Turn 90

°

Rear oil seal retainer x Cylinder block

6.0

60

53

Engine mounting bracket x Cylinder block

59

590

44

Fuel inlet pipe x Cylinder block

29

290

21

No.1 oil pipe x Cylinder block

55

550

41

Oil filter bracket x Cylinder block

90

900

66

No.2 water bypass pipe x Water pump

21

210

15

No.2 water bypass pipe x Cylinder block

21

210

15

Generator x Water pump

40

400

30

Generator x Cylinder block

40

400

30

Front exhaust pipe x Center exhaust pipe

44

440

32

Center exhaust pipe x Tailpipe

44

440

32

Heated oxygen sensor x Front exhaust pipe

45

450

33

SF0N1–03

–

SFI (2JZ–GE)

SFI SYSTEM

SF–1

1467

SFI SYSTEM

PRECAUTION

1.

BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (–) TERMINAL CABLE FROM BAT-
TERY

HINT:
Any diagnostic trouble code retained by the ECM will be erased
when the battery negative (–) terminal cable is removed from
the battery.
Therefore, if necessary, read the diagnostic trouble code(s) be-
fore removing the negative (–) terminal cable from the battery.
2.

DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON FUEL SYSTEM

3.

KEEP GASOLINE AWAY FROM RUBBER OR LEATH-
ER PARTS

4.

MAINTENANCE PRECAUTIONS

(a)

Precaution when the connecting gauge.
Use battery as the power source for the timing light, etc.

(b)

In the event of engine misfire, these precautions should
be taken.
(1)

Check proper connection of battery terminals, etc.

(2)

Handle high–tension cords carefully.

(3)

After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.

(4)

When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.

(c)

Precautions when the handling heated oxygen sensors.
(1)

Do not allow oxygen sensor to drop or hit against an
object.

(2)

Do not allow the sensor to come into contact with
water.

5.

IF VEHICLE IS EQUIPPED WITH MOBILE RADIO SYS-
TEM (HAM, CB, ETC.)

If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6.

AIR INDUCTION SYSTEM

(a)

Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine to run out of tune.

(b)

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.

FI2553

SST

SF–2

–

SFI (2JZ–GE)

SFI SYSTEM

1468

7.

ELECTRONIC CONTROL SYSTEM

(a)

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 disconnecting
the negative (–) terminal cable from the battery.
(b)

When installing the battery, be especially careful not to in-
correctly connect the positive (+) and negative (–) cable
terminals.

(c)

Do not permit parts to receive a severe impact during re-
moval or installation. Handle all SFI parts carefully, espe-
cially the ECM.

(d)

Do not be careless during troubleshooting as there are
numerous transistor circuits and even slight terminal con-
tact can further troubles.

(e)

Do not open the ECM cover.

(f)

When inspecting during rainy weather, take care to pre-
vent entry of water. Also, when washing the engine
compartment, prevent water from getting on the SFI parts
and wiring connectors.

(g)

Parts should be replaced as an assembly.

(h)

Care is required when pulling out and inserting wiring con-
nectors.
(1)

Release the lock and pull out the connector, pulling
on the connectors.

(2)

Fully insert the connector and check that it is locked.

(i)

When inspecting a connector with a volt/ohmmeter.
(1)

Carefully take out the water–proofing rubber if it is
a water–proof type connector.

(2)

Insert the test probe into the connector from wiring
side when checking the continuity, amperage or
voltage.

(3)

Do not apply unnecessary force to the terminal.

(4)

After checking, install the water–proofing rubber on
the connector securely.

(5)

Use SST for inspection or test of the injector or its
wiring connector.

SST

09842–30070

B01875

Fuel
Pump
Connector

B01998

New
Gasket

New
Gasket

FI1654

SST

Fulcrum Length

30 cm

–

SFI (2JZ–GE)

SFI SYSTEM

SF–3

1469

8.

FUEL SYSTEM

(a)

When disconnecting the high pressure fuel line, a large
amount of gasoline will spill out, so observe these proce-
dures:
(1)

Disconnect the fuel pump connector.

(2)

Start the engine. After the engine has stopped on
its own, turn the ignition switch OFF.

(3)

Put a container under the connection.

(4)

Slowly loosen the connection.

(5)

Disconnect the connection.

(6)

Plug the connection with a rubber plug.

(7)

Reconnect the fuel pump connector.

(b)

When connecting the flare nut or union bolt on the high
pressure pipe union, observe these procedures:
(1)

Union Bolt Type:
Always use a new gasket.

(2)

Union Bolt Type:
Tighten the union bolt by hand.

(3)

Union Bolt Type:
Tighten the union bolt to the specified torque.

Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)

(4)

Flare Nut Type:
Apply a light coat of engine oil to the flare and tight-
en the flare nut by hand.

(5)

Flare Nut Type:
Using SST, tighten the flare nut to the specified
torque.

SST

09631–22020

NOTICE:
Do not rotate the fuel pipe, when tightening the flare nut.

Torque: 
30 N·m (310 kgf·cm, 22 ft·lbf) for using SST
38 N·m (387 kgf·cm, 28 ft·lbf)

HINT:
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).