Lexus ES300 (1997 year). Manual — part 520

SF05S–03

S04591

S04590

SF–14

–

SFI

FUEL PRESSURE REGULATOR

865

1997 LEXUS ES300 (RM511U)

REMOVAL

1.

REMOVE FUEL PUMP ASSEMBLY FROM FUEL TANK
(See page

SF–10

)

2.

REMOVE FUEL FILTER

(a)

Remove the screw, and pull out the fuel filter.

(b)

Remove the O–ring from the fuel filter.

HINT:
At the time of installation, please refer to the following item.
Apply a light coat of gasoline to a new O–ring, and install it to
the fuel filter.

Torque: 2.0 N·m (20 kgf·cm, 17 in.·lbf)

3.

REMOVE FUEL PRESSURE REGULATOR

(a)

Remove the screw, and pull out the pressure regulator.
Torque: 2.0 N·m (20 kgf·cm, 17 in.·lbf)

(b)

Remove the O–ring from the pressure regulator.

HINT:
At the time of installation, please refer to the following item.
Apply a light coat of gasoline to a new O–ring, and install it to
the pressure regulator.

SF05T–01

–

SFI

FUEL PRESSURE REGULATOR

SF–15

866

1997 LEXUS ES300 (RM511U)

INSTALLATION

Installation is in the reverse order of removal (See page

SF–14

).

S05625

5 mm
Hexagon
Wrench

Clip

SF072–06

S04535

Sound Scope

S04534

Ohmmeter

SF–16

–

SFI

INJECTOR

867

1997 LEXUS ES300 (RM511U)

INJECTOR

ON–VEHICLE INSPECTION

1.

REMOVE V–BANK COVER

(a)

Using a 5 mm hexagon wrench, remove the 2 cap nuts.

(b)

Disconnect the 2 clips, and remove the V–bank cover.

2.

INSPECT INJECTOR OPERATION

Check operation sound from each injector.

(1)

With the engine running or cranking, use a sound
scope to check that there is normal operating noise
in proportion to engine speed.

(2)

If you have no sound scope, you can check the in-
jector operating vibration with your finger.

If no sound or unusual sound is heard, check the wiring connec-
tor, injector or injection signal from the ECM.

3.

INSPECT INJECTOR RESISTANCE

(a)

Disconnect the injector connector.

(b)

Using an ohmmeter, measure the resistance between the
terminals.
Resistance: 13.8

Ω

at 20

°

C (68

°

F)

If the resistance is not as specified, replace the injector.
(c)

Reconnect the injector connector.

4.

REINSTALL V–BANK COVER

HINT:
For fixing the V–bank cover, push on the cover until a ”click” is
felt.

SF073–05

S05371

PS Pressure Tube

Air Intake Chamber Stay

19.5 (200, 14)

39 (400, 19)

12 (120, 9)

V–Bank Cover

Gasket

No.2 EGR Pipe

Throttle Position
Sensor Connector

Gasket

Brake Booster
Vacuum Hose

EGR Valve Position

Sensor Connector

Accelerator Cable

Throttle Cable

Air Cleaner
Hose

IAC Valve
Connector

EGR Gas Temperature
Sensor Connector

EVAP Hose

Water Bypass Hose

Vacuum
Hose

Gasket

VSV Connector for ASIC

No.1 Engine
Hanger

Ground Cable

Ground Cable

Ground Strap

DLC1

PCV Hose
Air Intake Chamber
Assembly

Water Bypass Hose

Air Assist Hose and Pipe

19.5 (200, 14)

Retainer

Injector Connector

Delivery Pipe

10 (100, 7)

Spacer

O–Ring

Grommet

Grommet

O–Ring

N·m (kgf·cm, ft·lbf)

: Specified

Non–reusable part

43 (440, 32)

VSV Connector

for EGR

Engine Wire

VSV Connector

for EVAP

Injector

High–Tension Cord
Set

–

SFI

INJECTOR

SF–17

868

1997 LEXUS ES300 (RM511U)

COMPONENTS