O2 sensor TOYOTA CAMRY 2000 Service Repair Manual

SF078±03
± SFI (1MZ±FE)SFI SYSTEM
SF±1
1500 Author: Date:
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM,
DISCONNECT NEGATIVE (±) TERMINAL CABLE
FROM BATTERY
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (±) terminal cable is removed from
the battery.
Therefore, if necessary, read the diagnosis before 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
LEATHER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, these precautions should be
taken.
(1) Check proper connection to battery terminals, etc.
(2) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(3) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling the oxygen sensor.
(1) Do not allow the 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 A MOBILE RADIO
SYSTEM (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 allow air suction and cause the engine to run out
of tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Before removing SFI wiring connectors, terminals, etc.,
first disconnect the power by either turning the ignition
switch to LOCK 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.

SF07J±03
B06391
Air Intake Chamber Stay
No.1 Engine Hanger
VSV Connector for
EVAP
Ground Cable
Ground Strap
Air Intake Chamber
AssemblyNo.2 EGR
Pipe
VSV Connector
for EGR
Engine Wire
PCV Hose
VSV Connector for ACIS
Spacer
Injector Injector Connector
High±Tension Cord Set PS Pressure Tube
California A/T
Brake Booster
Vacuum Hose
Throttle Position
Sensor Connector
EGR Valve Position
Sensor Connector
IAC Valve
Connector
V±Bank Cover
Accelerator Cable
Throttle Cable
Air Cleaner Hose
EGR Gas Temperature
Sensor Connector Purge Hose
Vacuum
Hose
Water Bypass Hose
Air Assist Hose and Pipe
Gasket

O±Ring

O±Ring
Grommet
Injector
Insulator

Retainer

Gasket

Gasket
19.5 (200, 14)
39 (400, 29)
12 (120, 9)
43 (440, 32)
10 (100, 7)19.5 (200, 14)
N´m (kgf´cm, ft´lbf) : Specified torque

Non±reusable part
DLC1
SF±22
± SFI (1MZ±FE)INJECTOR
1521 Author: Date:
COMPONENTS

SF07N±03
B06469
Heated Oxygen Sensor (Bank 1 Sensor 2)
Before installing the heated oxygen sensor,
twist the sensor wire counterclockwise
3 and 1/2 turns. HINT:
After installing the heated oxygen sensor,
check that the sensor wire is not twisted,
if it is twisted, remove the heated oxygen
sensor and reinstall it.

Location of Fuel Tank Cushion
No.1 Fuel Tank
Protector
Fuel Tank Vent
Tube Set Plate
Fuel Pump
Fuel Outlet Tube
Fuel Inlet Pipe Fuel Inlet Pipe ShieldFuel Tank Cap
Fuel Inlet Pipe Protector
Heated Oxygen Sensor
(Bank 1 Sensor 2)Heat Insulator
Fuel Tank Band
Center Exhaust Pipe  Gasket Gasket  Gasket
 Non±reusable part
N´m (kgf´cm, ft´lbf): Specified torque
39 (400, 29)
44 (450, 33)
56 (570, 41)
56 (570, 41)
x 8


 Gasket
Fuel TankFuel Inlet Hose
Charcoal
Canister
EVAP Line Hose
Vent Line Hose
± SFI (1MZ±FE)FUEL TANK AND LINE
SF±31
1530 Author: Date:
FUEL TANK AND LINE
COMPONENTS
CAUTION:
Always use new gaskets when replacing the fuel tank or component parts.
Apply the proper torque to all parts tightened.

S04593
SF07T±03
S04536
Vacuum
VTAOhmmeter
E2
VC
S04604
Plug
Disconnect
± SFI (1MZ±FE)THROTTLE BODY
SF±37
1536 Author: Date:
THROTTLE BODY
ON±VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
Check that the throttle linkage moves smoothly.
2. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the sensor connector.
(b) Disconnect the vacuum hose from the throttle body.
(c) Apply vacuum to the throttle opener.
(d) Using an ohmmeter, measure the resistance between
each terminal.
Resistance:
Throttle valve
conditionBetween
terminalsResistance
Fully closedVTA ± E20.2 ± 6.3 kW
Fully openVTA ± E22.0 ± 10.2 kW
±VC ± E22.5 ± 5.9 kW
(e) Reconnect the vacuum hose to the throttle body.
(f) Reconnect the sensor connector.
3. INSPECT THROTTLE OPENER
(a) Allow the engine to warm up to normal operating tempera-
ture.
(b) Check idle speed.
Idle speed: 700 ± 50 rpm
(c) Disconnect the vacuum hose from the throttle opener,
and plug the hose end.
(d) Check the throttle opener setting speed.
Throttle opener setting speed: 900 ± 1,950 rpm
If the throttle opener setting is not as specified, replace the
throttle body.
(e) Stop the engine.
(f) Reconnect the vacuum hose to the throttle opener.
(g) Start the engine and check that the idle speed returns to
the correct speed.

SF07U±03
S04741
EGR Gas Temperature
Sensor Bracket
Gasket
Throttle Body
Throttle Position
Sensor Connector
IAC Valve Connector
Water Bypass Hose
Air Assist Hose
Water Bypass Hose
Air Cleaner Hose Accelerator Cable
Throttle Cable (A/T)
N´m (kgf´cm, ft´lbf)

Non±reusable part: Specified torque
19.5 (200, 14)
SF±38
± SFI (1MZ±FE)THROTTLE BODY
1537 Author: Date:
COMPONENTS

SF07V±03
S04506
S06123
(a)
(b)
(d) (e)
(c)
S04527
EGR Gas Temperature
Sensor Bracket
± SFI (1MZ±FE)THROTTLE BODY
SF±39
1538 Author: Date:
REMOVAL
1. DRAIN ENGINE COOLANT
2. DISCONNECT ACCELERATOR CABLE
3. A/T:
DISCONNECT THROTTLE CABLE
4. REMOVE AIR CLEANER HOSE
(a) Disconnect the PCV hose.
(b) Loosen the 2 hose clamps, and remove the air cleaner
hose.
5. REMOVE THROTTLE BODY
(a) Disconnect the throttle position sensor connector.
(b) Disconnect the IAC valve connector.
(c) Disconnect the water bypass hose (from the intake man-
ifold).
(d) Disconnect the water bypass hose (from the water inlet
housing).
(e) Disconnect the air assist hose.
(f) Remove the 2 bolts, 2 nuts, EGR gas temperature sensor
bracket, throttle body and gasket.
HINT:
At the time of installation, please refer to the following items.
Place a new gasket on the air intake chamber.
Torque: 19.5 N´m (200 kgf´cm, 14 ft´lbf)

SF07W±03
S04582
S04595
Throttle
Stop Screw
No Clearance
Throttle LeverVacuum SF±40
± SFI (1MZ±FE)THROTTLE BODY
1539 Author: Date:
INSPECTION
1. CLEAN THROTTLE BODY
(a) Using a soft brush and carburetor cleaner, clean the cast
parts.
(b) Using compressed air, clean all the passages and aper-
tures.
NOTICE:
To prevent deterioration, do not clean the throttle position
sensor and IAC valve.
2. INSPECT THROTTLE VALVE
(a) Apply vacuum to the throttle opener.
(b) Check that there is no clearance between the throttle stop
screw and throttle lever when the throttle valve is fully
closed.
3. INSPECT THROTTLE POSITION SENSOR
(See page SF±37)

SF07Z±03
S04742

Gasket
Throttle Body
Throttle Position
Sensor Connector
Water Bypass Hose
Air Cleaner HoseAir Assist Hose
Accelerator Cable)
Throttle Cable (A/T) EGR Gas Temperature
Sensor Bracket
N´m (kgf´cm, ft´lbf) : Specified torque

Non±reusable partWater Bypass HoseIAC Valve Connector
19.5 (200, 14)

Gasket Throttle Body
IAC Valve
SF±44
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
1543 Author: Date:
COMPONENTS

SF08G±03
B06550
VSV for Vapor Pressure
Sensor Connector
VSV for Vapor
Pressure Sensor
Vacuum Hose
Charcoal Canister
± SFI (1MZ±FE)VSV FOR VAPOR PRESSURE SENSOR
SF±61
1560 Author: Date:
VSV FOR VAPOR PRESSURE SENSOR
COMPONENTS

SF08H±03
B01273
Ohmmeter
Continuity
B00798
Ohmmeter
No Continuity
B00799
Air
E
G
B00800
BatteryAir
F
E SF±62
± SFI (1MZ±FE)VSV FOR VAPOR PRESSURE SENSOR
1561 Author: Date:
INSPECTION
1. REMOVE VSV
2. INSPECT VSV FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between the
terminals.
Resistance: 33 ± 39 W at 20°C (68°F)
If there is no continuity, replace the VSV.
3. INSPECT VSV FOR GROUND
Using an ohmmeter, check that there is no continuity between
each terminal and the body.
If there is continuity, replace the VSV.
4. INSPECT VSV OPERATION
(a) Check that air flows from ports E to G.
(b) Apply battery positive voltage across the terminals.
(c) Check that air flows from ports E to F.
If operation is not as specified, replace the VSV.
5. REINSTALL VSV