TOYOTA AVALON 2001 Service Repair Manual

SF068-03
B06512
- SFIIDLE AIR CONTROL (IAC) VALVE
SF-45
1154 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE THROTTLE BODY (See page SF-36)
2. REMOVE IAC VALVE
Remove the 4 screws, bracket, IAC valve and gasket.
HINT:
At the time of installation, please refer to the following items.
Place a new gasket on the throttle body.

SF073-04
B09080
PS Pressure Tube
19.5 (200, 14)39 (400, 19)
Throttle Position
Sensor Connector
Accelerator Cable
IAC Valve Connector
Water Bypass
Hose
Vacuum Hose

Gasket PCV Hose
Air Intake Chamber
Assembly
43 (440, 32)
Throttle Body Bracket
No.1 Engine
Hanger
Ground Cable
Ground Cable
Ground Strap
VSV Connector for No.2 ACIS Purge Hose
Air Assist Hose and Pipe
19.5 (200, 14)

Retainer
Injector Connector Delivery Pipe10 (100, 7)
Spacer

O-Ring

Grommet
Injector

Insulator

O-RingV-Bank Cover
Brake Booster
Vacuum HoseVSV Connector
for No.1 ACIS
VSV Connector
for EVAP
DLC1
Fuel Hose Clamp
Fuel Inlet Hose
N´m (kgf´cm, ft´lbf): Specified

Non-reusable partAir Cleaner Hose
w/ Resonator
Throttle Cable
SF-20
- SFIINJECTOR
1129 Author
: Date
:
2001 AVALON (RM808U)
COMPONENTS

SF075-05
B09081
Fuel Tube Connector
SST
(Union)
InjectorSST
(Hose) SST
(Clamp)
Fuel Filter
(On Vehicle)
S05359
Fuel Tube Connector
B09082
SST
(Hose)Fuel Tube Connector
Fuel Filter
B06481
SST (Union)SST (Hose)
O-Ring
SST
(Clamp)
Vinyl Tube
A10838
TOYOTA Hand-Held Tester
DLC3
- SFIINJECTOR
SF-23
1132 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT INJECTOR INJECTION
CAUTION:
Keep injector clear of sparks during the test.
(a) Purchase the new No.1 fuel pipe and take out the fuel
tube connector from its pipe.
Part No. 23801-20070
(b) Connect SST (hose) and fuel tube connector to the fuel
filter outlet.
SST 09268-41047
CAUTION:
Preform connecting operations of the fuel tube connector
(quick type) after observing the precautions (See page
SF-1).
HINT:
Use the vehicle fuel filter.
(c) Install the grommet and O-Ring to the injector.
(d) Connect SST (union and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09268-41047
(e) Put the injector into a graduated cylinder.
HINT:
Install a suitable vinyl hose onto the injector to prevent gasoline
from splashing out.
(f) Connect the TOYOTA hand-held tester to the DLC3.
(g) Turn the ignition switch ON and push the TOYOTA hand-
held tester main switch ON.
NOTICE:
Do not start the engine.
(h) Select the ACTIVE TEST mode on the TOYOTA hand-
held tester.
(i) Please refer to the TOYOTA hand-held tester operator's
manual for further details.

B06483
SST
(Wire)
Battery
B06482
SF-24
- SFIINJECTOR
1133 Author
: Date
:
2001 AVALON (RM808U)
(j) If you have no TOYOTA hand-held tester, connect the
positive (+) and negative (-) leads from the battery to the
fuel pump connector (See page SF-6).
(k) Connect SST (wire) to the injector and battery for 15 se-
conds, and measure the injection volume with a gra-
duated cylinder. Test each injector 2 or 3 times.
SST 09842-30070
Volume: 60 - 73 cm
3 (3.4 - 4.5 cu in.) per 15 sec.
Difference between each injector:
13 cm
3 (0.8 cu in.) or less
If the injection volume is not as specified, replace the injector.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the test probes of SST
(wire) from the battery and check the fuel leakage from
the injector.
SST 09842-30070
Fuel drop: 1 drop or less per 12 minutes
(b) Turn the ignition switch OFF.
(c) Disconnect the negative (-) terminal cable from the bat-
tery.
(d) Remove the SST and fuel tube connector.
SST 09268-41047, 09842-30070
CAUTION:

Perform disconnecting operations of the fuel tube
connector (quick type) after observing the precau-
tions (See page SF-1).

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the engine compart-
ment.
(e) Disconnect the TOYOTA hand- held tester from the
DLC3.

SF076-05
B06484
New Insulator
New
O-Ring
New GrommetNew
O-Ring
B06485
Turn
Connector
Push
S04510
Spacer
Spacer
B06614
B06616
Rotate
Outward
- SFIINJECTOR
SF-25
1134 Author
: Date
:
2001 AVALON (RM808U)
INSTALLATION
1. INSTALL INJECTORS AND DELIVERY PIPES
(a) Install new insulator and grommet to each injector.
(b) Apply a light coat of spindle oil or gasoline to 2 new O-
rings and install them to each injector.
(c) Apply a light coat of spindle oil or gasoline on the place
where a delivery pipe touches an O-ring of the injector.
(d) While turning the injector clockwise and counterclock-
wise, push it to the delivery pipes. Install the 6 injectors.
(e) Position the injector connector outward.
(f) Place the 4 spacers in position on the intake manifold.
(g) Apply a light coat of spindle oil or gasoline on the place
where a intake manifold touches an O-ring of the injector.
(h) Place the delivery pipes and fuel pipe together with the 6
injectors in position on the intake manifold.
(i) Temporarily install the 4 bolts holding the delivery pipes
to the intake manifold.
(j) Temporarily install the bolt holding the No.1 fuel pipe to
the intake manifold.
(k) Check that the injectors rotate smoothly.
HINT:
If injectors do not rotate smoothly, the probable cause is incor-
rect installation of O-rings. Replace the O-rings.
(l) Position the injector connector outward.

B01020
B06618
Align
B09079
B09076
Fuel Hose
Clamp
B06613
SF-26
- SFIINJECTOR
1135 Author
: Date
:
2001 AVALON (RM808U)
(m) Tighten the 4 bolts holding the delivery pipes to the intake
manifold.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
(n) Tighten the bolt holding the No.1 fuel pipe to the intake
manifold.
Torque: 19.5 N´m (200 kgf´cm, 14 ft´lbf)
2. CONNECT NO.1 FUEL PIPE
(a) Align the alignment marks (white paint) on the No.1 fuel
pipe.
(b) Connect the No.1 fuel pipe (fuel tube connector) to the
fuel filter.
CAUTION:
Perform connecting operations of the fuel tube connector
(quick type) after observing the precautions.
(c) Surely install the fuel hose clamp to the fuel filter with
ºclickº sound.
(d) After installing the clamp, check that the clamp is fixed by
pulling up the clamp.
3. INSTALL AIR ASSIST HOSES AND PIPE
4. CONNECT INJECTOR CONNECTORS
5. INSTALL AIR INTAKE CHAMBER ASSEMBLY
(See page EM-59)
6. INSTALL AIR CLEANER HOSE WITH RESONATOR
7. INSTALL V-BANK COVER
(a) Using 5 mm hexagon wrench, install the V-bank cover
with the 3 cap nuts.
(b) Press down the V-bank cover fastener.
8. CHECK FOR FUEL LEAKS

A10518
5 mm
Hexagon
Wrench
SF072-05
B06523
Sound Scope
B06522
Ohmmeter
- SFIINJECTOR
SF-19
1128 Author
: Date
:
2001 AVALON (RM808U)
INJECTOR
ON-VEHICLE INSPECTION
1. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) 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: 13.4 - 14.2 W 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
(a) Using 5 mm hexagon wrench, install the V-bank cover
with the 3 cap nuts.
(b) Press down the V-bank cover fastener.

SF0ZR-02
A10518
5 mm
Hexagon
Wrench
S04505
B06613
B09076
Fuel Hose
Clamp
B09077
- SFIINJECTOR
SF-21
1130 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) Remove the V-bank cover.
2. REMOVE AIR CLEANER HOSE WITH RESONATOR
3. REMOVE AIR INTAKE CHAMBER ASSEMBLY
(See page EM-31)
4. DISCONNECT INJECTOR CONNECTORS
5. REMOVE AIR ASSIST HOSES AND PIPE
6. DISCONNECT NO.1 FUEL PIPE
(a) Remove the fuel hose clamp.
(b) Disconnect the No.1 fuel pipe (fuel tube connector) from
the fuel filter outlet.
CAUTION:

Perform disconnecting operations of the fuel tube
connector (quick type) after observing the precau-
tions (See page SF-1).

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the engine compart-
ment.

B06617
SF-22
- SFIINJECTOR
1131 Author
: Date
:
2001 AVALON (RM808U)
7. REMOVE DELIVERY PIPES AND INJECTORS
NOTICE:

Be careful not to drop the injectors when removing
the delivery pipes.

Pay attention to put any hung load on the injector to
and from the side direction.
(a) Remove the 5 bolts and delivery pipes together with the
6 injectors and No.1 fuel pipe.
(b) Remove the 4 spacers from the intake manifold.
(c) Pull out the 6 injectors from the delivery pipes.
(d) Remove the 2 O-rings and 2 grommets from each injec-
tor.

SF06S-03
B09135
Ground Cable
PCV Hose
Air Intake Chamber
Assembly
ECT Sensor
Connector ECT Sender
Gauge Connector
IAC Valve
Connector
VSV Connector for No.2 ACIS
Engine Coolant
Reservoir HoseThrottle Position
Sensor Connector Brake Booster
Vacuum Hose Throttle Body Bracket
Water Outlet PS Pressure Tube
19.5 (200, 14)
39 (400, 19)
15 (150, 11)
43 (440, 32)
Ground Strap
DLC1
Gasket
15 (150, 11)
Grand Strap
Connector

Gasket
39 (400, 29)
V-Bank Cover
Accelerator CableAir Cleaner Hose
w/ Resonator
Purge Hose
Vacuum Hose
Fuel Hose
Clamp
Heater Hose
Intake Manifold Assembly
Injector Connector x 9
Knock Sensor
Connector
Upper Radiator
Hose

Gasket
: Specified torque

Non-reusable part
N´m (kgf´cm, ft´lbf)

Retainer
Knock Sensor
Water Bypass
Hose
VSV Connector for
EVAP
No.1 Engine
Hanger
VSV Connector
for No.1 ACIS
Throttle Cable
Ground Cable
SF-76
- SFIKNOCK SENSOR
1185 Author
: Date
:
2001 AVALON (RM808U)
KNOCK SENSOR
COMPONENTS