EC–1

1NZ-FXE EMISSION CONTROL – EMISSION CONTROL SYSTEM

EMISSION CONTROL SYSTEM
1NZ-FXE EMISSION CONTROL
ENGINE

PARTS LOCATION
VENTILATION VALVE

PURGE VSV

EC

AIR FUEL RATIO SENSOR
(for Bank 1 Sensor 1)

HEATED OXYGEN SENSOR
(for Bank 1 Sensor 2)

FUEL TANK CAP

FUEL TANK PRESSURE SENSOR
FRESH AIR LINE
PURGE LINE

CANISTER PRESSURE
SWITCHING VALVE

CANISTER
FILTER
CANISTER
TRAP CANISTER
- CANISTER PUMP MODULE

VENT LINE

A128659E01

EC–2

1NZ-FXE EMISSION CONTROL – EMISSION CONTROL SYSTEM

SYSTEM DIAGRAM
The emission control system is controlled by the ECM based
on signals from various sensors.

Ventilation Valve

Air Fuel Ratio Sensor

EC
Heated Oxygen Sensor

Catalyst
Purge Line
Purge VSV

Canister
Fuel Cap
Pressure Switching Valve
Fuel Tank Pressure Sensor
Vent Line
Trap Canister with Pump Module
Canister Filter

Fresh Air Line

Fuel
Pump
Chamber

Roll-Over Valve
Bladder Tank

A128666E01

EC–3

1NZ-FXE EMISSION CONTROL – EMISSION CONTROL SYSTEM

ECM

EFI

MREL
Purge VSV
EVP1

Heated Oxygen Sensor

+B

HT

HT1B

E

OX

OX1B

EC

Shielded
EFI

Air Fuel Ratio Sensor

+B

AF+

A1A+

HT

AF-

A1AShielded

P/I

HA1A
Fuel Tank Pressure Sensor

MAIN

PTNK

PTNK

VCC

VC

E2

E2

Sub
Battery

A

B

C
A128667E01

EC–4

1NZ-FXE EMISSION CONTROL – EMISSION CONTROL SYSTEM

A

B

C

Canister Pump Module

SGND

Canister
Pressure
Sensor

VOUT

PPMP

VCC

EC

MGND

E1

Leak
Detection M
Pump
MTRB

VLVB

VGND

MPMP

+B

VPMP

Pressure Switching Valve
TBP

A128668E01

1NZ-FXE EMISSION CONTROL – EMISSION CONTROL SYSTEM

EC–5

ON-VEHICLE INSPECTION
1.

INSPECT FUEL CUT OFF RPM
(a) Check the operation.
(1) Stat the engine, then warm up it.
(2) Connect the intelligent tester to the DLC3.
(3) Turn the intelligent tester ON.
(4) Select the item: DIAGNOSIS / ENHANCED
OBD II / DATA LIST / USER DATA /
INJECTOR.
(5) Drive the vehicle. When releasing the
accelerator pedal after the vehicle speed is 45
to 60 km/h (28 to 37 mph), read "INJECTOR"
on the intelligent tester.
Standard:
0 ms

2.

CHECK AIR INLET LINE
(a) Check the ventilation.
(1) Disconnect the ventilation hose (see page FU23).
(2) Check that there is ventilation from the canister
filter to the fuel tank inlet pipe when air is
applied to the vent hose of the canister filter.
If there is no ventilation, replace the canister
filter.
(3) Connect the ventilation hose (see page FU-32).

Intelligent Tester

DLC3
A087542E01

Air

A088405E01

3.

A087597E01

VISUALLY CHECK HOSES, CONNECTIONS AND
GASKETS
(a) Check the appearance.
(1) Visually check that there are no cracks, leaks
or damage on the indicated portions in the
illustration.
HINT:
• Removing the oil level gauge, oil filler cap or
ventilation hoses may cause the engine
malfunction or engine stall.
• If the parts between the mass air flow meter
and cylinder head are disconnected, loose
or cracked, secondary air may be sucked. If
could cause the engine malfunction or
engine stall.

EC

EC–6

1NZ-FXE EMISSION CONTROL – CANISTER

CANISTER
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS
LOWER CENTER INSTRUMENT PANEL FINISH PANEL

x2

CLIP

CLIP

EC

POWER OUTLET CONNECTOR

GASKET
FRONT FLOOR CARPET
COMPRESSION SPRING
FRONT EXHAUST PIPE

43 (440, 32)

x2

GASKET
x2

43 (440, 32)

x4
COMPRESSION SPRING
N*m (kgf*cm, ft.*lbf) : Specified torque

30 (302, 22)

FRONT FLOOR PANEL BRACE

Non-reusable part
A131462E01

EC–7

1NZ-FXE EMISSION CONTROL – CANISTER

REAR SEAT CUSHION ASSEMBLY

REAR FLOOR SERVICE HOLE COVER

FUEL TANK INLET PIPE SUB-ASSEMBLY

EC
WIRE TO WIRE CONNECTOR

FUEL TUBE CONNECTOR

FUEL PUMP CONNECTOR

FUEL FILLER PIPE CLAMP

NO. 1 FUEL TANK BAND
SUB-ASSEMBLY RH

FUEL TANK SUB-ASSEMBLY

NO. 1 FUEL TANK BAND
SUB-ASSEMBLY LH

x2
39 (400, 29)

x2
39 (400, 29)

N*m (kgf*cm, ft.*lbf) : Specified torque
A131463E01

EC–8

1NZ-FXE EMISSION CONTROL – CANISTER

6.0 (61, 53 in.*lbf)

CANISTER HOSE
CLAMP

EC

CANISTER
NO. 1 CANISTER OUTLET HOSE

N*m (kgf*cm, ft.*lbf) : Specified torque
A128660E01

1NZ-FXE EMISSION CONTROL – CANISTER

EC–9

REMOVAL
1.

DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-12)

2.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

3.

REMOVE REAR DECK FLOOR BOX (See page CH-4)

4.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

5.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

6.

REMOVE LOWER CENTER INSTRUMENT PANEL
FINISH PANEL (See page IP-18)

7.

REMOVE REAR SEAT CUSHION ASSEMBLY (See
page SE-15)

8.

REMOVE REAR FLOOR SERVICE HOLE COVER (See
page FU-23)

9.

REMOVE FRONT FLOOR PANEL BRACE (See page
EX-2)

10. REMOVE FRONT EXHAUST PIPE
(a) Using a clip remover, remove the clip.
(b) Fold back the front floor carpet.

A087436E01

(c) Disconnect the heated oxygen sensor connector.
(d) Remove the grommet of the heated oxygen sensor
from the vehicle.
(e) Remove the 2 bolts and 2 compression springs.
(f) Remove the gasket from the front exhaust pipe.
(g) Disconnect the tail pipe from the front exhaust pipe.
(h) Remove the 2 bolts and 2 compression springs.
(i) Remove the front exhaust pipe from the 2 exhaust
pipe supports.
A087437E01

EC

EC–10

1NZ-FXE EMISSION CONTROL – CANISTER

(j)

Remove the gasket from the exhaust manifold.

EC
A086203

11. REMOVE FUEL TANK SUB-ASSEMBLY (See page
FU-23)
12. REMOVE CANISTER
(a) Disconnect the pressure switching valve connector.
(b) Remove the clamp.
(c) Remove the wire harness clamp.

A087525E01

(d) Remove the clamp.
(e) Disconnect the 2 canister hoses from the fuel tank
retainer and fuel tank to canister tube.
(f) Disconnect the No. 1 canister outlet hose from the
fuel tank.

A087524E01

1NZ-FXE EMISSION CONTROL – CANISTER

EC–11

(g) Remove the bolt and 2 nuts, then remove the
canister.

A087526E01

INSPECTION
1.

INSPECT CANISTER
(a) Check the appearance.
(1) Check that there are no cracks or damage on
the indicated portions of the canister.
If there are any defects, replace the canister.

EC
A087562E01

(b) Check the ventilation.
(1) Disconnect the charcoal canister hose from the
canister.
(2) Remove the No. 1 canister outlet hose from the
canister.

A087563E01

(3) Check that there is ventilation from port B when
air of 4.9 kPa (50 gf/cm2, 0.71 psi) is applied to
port A with the port C plugged with your finger.
If there is no ventilation, replace the canister.

C

B
A
A087564E01

(4) Check that there is ventilation from ports B and
C when air (4.9 kPa (50 gf/cm2, 0.71 psi)) is
applied to canister vent hose.
If there is no ventilation, replace the canister.

C

B
A
A087565E01

EC–12

1NZ-FXE EMISSION CONTROL – CANISTER

INSTALLATION
1.

INSTALL CANISTER
(a) Install the canister with the bolt and 2 nuts.
Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf)

A087526E01

(b) Connect the No. 1 canister outlet hose to the fuel
tank.
(c) Connect the 2 canister hoses to the fuel tank
retainer and fuel tank to canister tube.
(d) Install the clamp.

EC
A087524E01

(e) Install the wire clamp harness.
(f) Install the clamp.
(g) Connect the pressure switching valve connector.
2.

INSTALL FUEL TANK SUB-ASSEMBLY (See page FU35)

3.

INSTALL FRONT EXHAUST PIPE
(a) Using a vernier caliper, measure the free length of
the compression spring.
Minimum length:
40.5 mm (1.594 in.)
If the length is less than the minimum, replace the
compression spring.

A087525E01

A111834

Wooden
Block
Gasket
A076194E04

(b) Using a plastic-faced hammer and wooden block,
tap in a new gasket until its surface is flush with the
exhaust manifold.
NOTICE:
• Tap in the gasket in the correct direction.
• Do not reuse the removed gasket.
• Do not push in the gasket while installing the
exhaust pipe.
(c) Connect the 2 exhaust pipe supports, and install the
exhaust pipe.

1NZ-FXE EMISSION CONTROL – CANISTER

EC–13

(d) Install the 2 compression springs and 2 bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
(e) Install the grommet of the heated oxygen sensor to
the vehicle.
(f) Connect the heated oxygen sensor connector.
(g) Install the front floor carpet with the clip.
4.

CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)

5.

CHECK FOR FUEL LEAKS (See page FU-8)

6.

CHECK FOR EXHAUST GAS LEAKS (See page EX-4)

7.

INSTALL FRONT FLOOR PANEL BRACE (See page
EX-4)

8.

INSTALL REAR FLOOR SERVICE HOLE COVER (See
page FU-38)

9.

INSTALL REAR SEAT CUSHION ASSEMBLY (See
page SE-23)

A087437

10. INSTALL LOWER CENTER INSTRUMENT PANEL
FINISH PANEL (See page IP-21)
11. INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)
12. INSTALL REAR DECK FLOOR BOX (See page CH-8)
13. INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)
14. PERFORM INITIALIZATION
(a) Perform initialization (see page IN-32).
NOTICE:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.

EC

EC–14

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

TRAP CANISTER
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS
LOWER CENTER INSTRUMENT PANEL FINISH PANEL

x2

CLIP

CLIP

EC

POWER OUTLET CONNECTOR

GASKET
FRONT FLOOR CARPET
COMPRESSION SPRING
FRONT EXHAUST PIPE

43 (440, 32)

x2

GASKET
x2

43 (440, 32)

x4
COMPRESSION SPRING
N*m (kgf*cm, ft.*lbf) : Specified torque

30 (302, 22)

FRONT FLOOR PANEL BRACE

Non-reusable part
A131462E02

EC–15

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

REAR SEAT CUSHION ASSEMBLY

REAR FLOOR SERVICE HOLE COVER

FUEL TANK INLET PIPE SUB-ASSEMBLY

EC
WIRE TO WIRE CONNECTOR

FUEL TUBE CONNECTOR

FUEL PUMP CONNECTOR

FUEL FILLER PIPE CLAMP

NO. 1 FUEL TANK BAND
SUB-ASSEMBLY RH

FUEL TANK SUB-ASSEMBLY

NO. 1 FUEL TANK BAND
SUB-ASSEMBLY LH

x2
39 (400, 29)

x2
39 (400, 29)

N*m (kgf*cm, ft.*lbf) : Specified torque
A131463E02

EC–16

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

6.0 (61, 53 in.*lbf)

FUEL TANK WIRE
CLAMP

EC
TRAP CANISTER WITH
PUMP MODULE
FUEL TANK VENT
SUB-ASSEMBLY

FUEL TANK BREATHER
TUBE GASKET

CANISTER PUMP MODULE CONNECTOR

N*m (kgf*cm, ft.*lbf) : Specified torque
Non-reusable part
A128662E01

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

EC–17

REMOVAL
1.

DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-12)

2.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

3.

REMOVE REAR DECK FLOOR BOX (See page CH-4)

4.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

5.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

6.

REMOVE LOWER CENTER INSTRUMENT PANEL
FINISH PANEL (See page IP-18)

7.

REMOVE REAR SEAT CUSHION ASSEMBLY (See
page SE-15)

8.

REMOVE REAR FLOOR SERVICE HOLE COVER (See
page FU-23)

9.

REMOVE FRONT FLOOR PANEL BRACE (See page
EX-2)

10. REMOVE FRONT EXHAUST PIPE (See page EC-9)
11. REMOVE FUEL TANK SUB-ASSEMBLY (See page
FU-23)
12. REMOVE TRAP CANISTER WITH PUMP MODULE
(a) Remove the clamp from the fuel tank vent hose and
canister hose.
(b) Remove the tube of the fuel tank main tube from the
clamp.
(c) Remove the tube of the fuel tank to canister tube
from the clamp.
(d) Remove the tube of the fuel tank vent hose from the
2 fuel tube with No. 1 grommet clamps.
A128670

(e) Disconnect the canister pump module connector.
(f) Remove the 2 bolts, then remove the trap canister
with pump module and ground terminal of the fuel
tank wire.

A128671

EC

EC–18

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

(g) Remove the gasket from the fuel tank.

A087502E01

(h) Remove the 2 clamps from the trap canister with
pump module.

EC
A128672

(i)

Pinch

Push
Fuel Tank Vent Hose Connector

Pipe
Retainer
O-Ring
Nylon Tube
A112317E01

Pinch the retainer and pull out the fuel tank vent
connector with the fuel tank vent hose connector
pushed to the fuel tank vent hose side to disconnect
the fuel tank vent hose from the trap canister with
pump module.
NOTICE:
• Remove dirt or foreign objects on the fuel
tank vent hose connector before this work
procedure.
• Do not allow any scratches or foreign objects
on the parts when disconnecting them as the
fuel tank vent hose connector has the O-ring
that seals the pipe.
• Perform this work by hand. Do not use any
tools.
• Do not forcibly bend, twist or turn the nylon
tube.
• Protect the connecting part by covering it
with a plastic bag after disconnecting the fuel
tank vent hose.
• If the fuel tank vent hose connector and pipe
are stuck, push and pull them to release
them.

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

EC–19

INSPECTION
1.

INSPECT TRAP CANISTER WITH PUMP MODULE
(a) Check the appearance.
(1) Check that there are no cracks or damage on
the indicated portion of the trap canister with
pump module.
If there are any defects, replace the trap
canister with pump module.

A128675

(b) Check the ventilation.
(1) Remove the 2 bolts and canister pump module.

EC
A128676

(2) Check that there is ventilation from port A when
air is applied to port B.
If there is no ventilation, replace the trap
canister with pump module.
B
A

Air
A087568E01

(c) Check the leak detection pump.
(1) Check that air flows from port A to port B and
C.
If the result is not as specified, replace the
canister.
A
Air

B
A131292E01

Valve

7

Closed

6

A131293E01

(2) Connect the positive (+) lead of the battery to
terminal 7 and the negative (-) lead to terminal
6. Check that the valve is closed.
If the result is not as specified, replace the trap
with outlet valve canister.
(3) Install the canister pump module.

EC–20

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

INSTALLATION
1.

Push
A128674E01

EC

INSTALL TRAP CANISTER WITH PUMP MODULE
(a) Install the fuel tank vent hose.
(1) Align the fuel tank vent hose connector with the
pipe, then push in the fuel tank vent hose
connector until the retainer makes a "click"
sound to install the fuel tank vent hose to the
trap canister with pump module.
NOTICE:
• Check that there are no scratches or
foreign objects around the connected
part of the fuel tank vent hose connector
and pipe before this procedure.
• After connecting the fuel tank vent hose,
check that the fuel tank vent hose is
securely connected by pulling the fuel
tank vent hose connector.
(b) Install a new gasket to the fuel tank.
(c) While being careful that the gasket does not drop in
the fuel tank, insert the trap canister with pump
module to the fuel tank.
(d) Install the trap canister with pump module and
ground terminal of the fuel tank wire with the 2 bolts.
Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf)
(e) Install the tube of the fuel tank vent hose to the 2
No. 1 fuel tube with grommet clamps.
(f) Install the clamp to the fuel tank vent hose and
canister hose.
(g) Connect the canister pump module connector.
(h) Install the fuel tank vent hose to the 2 No. 1 fuel
tube with grommet clamps.
(i) Install the tube of the fuel tank to canister tube to the
clamp.
(j) Install the tube of the fuel tank main tube to the
clamp.
(k) Install the clamp to the fuel tank vent hose and
canister hose.

A087504E01

2.

INSTALL FUEL TANK SUB-ASSEMBLY (See page FU35)

3.

INSTALL FRONT EXHAUST PIPE (See page EC-12)

4.

CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)

5.

CHECK FOR FUEL LEAKS (See page FU-8)

6.

CHECK FOR EXHAUST GAS LEAKS (See page EX-4)

7.

INSTALL FRONT FLOOR PANEL BRACE (See page
EX-4)

8.

INSTALL REAR FLOOR SERVICE HOLE COVER (See
page FU-38)

9.

INSTALL REAR SEAT CUSHION ASSEMBLY (See
page SE-23)

1NZ-FXE EMISSION CONTROL – TRAP CANISTER

EC–21

10. INSTALL LOWER CENTER INSTRUMENT PANEL
FINISH PANEL (See page IP-21)
11. INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)
12. INSTALL REAR DECK FLOOR BOX (See page CH-8)
13. INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)
14. PERFORM INITIALIZATION
(a) Perform initialization (see page IN-32).
NOTICE:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.

EC

EC–22

1NZ-FXE EMISSION CONTROL – VACUUM SWITCHING VALVE

VACUUM SWITCHING VALVE
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS

PURGE LINE HOSE
PURGE VSV CONNECTOR
PURGE LINE HOSE

EC

7.5 (76, 66 in.*lbf)

PURGE VSV

N*m (kgf*cm, ft.*lbf) : Specified torque
A128665E01

1NZ-FXE EMISSION CONTROL – VACUUM SWITCHING VALVE

EC–23

REMOVAL
1.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

2.

REMOVE REAR DECK FLOOR BOX (See page CH-4)

3.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

4.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

5.

REMOVE PURGE VSV
(a) Disconnect the purge VSV connector.
(b) Disconnect the 2 purge line hoses from the purge
VSV.
(c) Remove the bolt, then remove the purge VSV.

A087598E01

INSPECTION
1.

A086290E02

INSPECT PURGE VSV
(a) Inspect the resistance.
(1) Measure the resistance between the terminals.
Standard resistance

Tester Connection

Specified Condition

1-2

26 to 30 Ω at 20°C (68°F)

If the resistance is not as specified, replace the
purge VSV.
(b) Check the ventilation.
(1) Check that there is no ventilation from port F
when air is applied to port E.
If there is ventilation, replace the purge VSV.

Air

E
F
A086292E01

EC

EC–24

1NZ-FXE EMISSION CONTROL – VACUUM SWITCHING VALVE

(2) Apply battery voltage across the terminals.
(3) Check that there is ventilation from port F when
air is applied to port E.
If there is no ventilation, replace the purge VSV.

Air

E
F

Battery
A086293E01

INSTALLATION

EC
A087598E01

1.

INSTALL PURGE VSV
(a) Install the purge VSV with the bolt.
Torque: 7.5 N*m (76 kgf*cm, 66 in.*lbf)
(b) Connect the 2 purge line hoses to the purge VSV.
(c) Connect the purge VSV connector.

2.

CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)

3.

INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)

4.

INSTALL REAR DECK FLOOR BOX (See page CH-8)

5.

INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)

6.

PERFORM INITIALIZATION
(a) Perform initialization (see page IN-32).
NOTICE:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.

EC–25

1NZ-FXE EMISSION CONTROL – VENTILATION VALVE

VENTILATION VALVE
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS

AIR CLEANER ASSEMBLY

9.0 (92, 80 in.*lbf)
7.0 (71, 62 in.*lbf)

WIRE HARNESS

3.0 (31, 27 in.*lbf)

CLAMP

EC
3.0 (31, 27 in.*lbf)

NO. 1 AIR CLEANER INLET

CLAMP

BRAKE MASTER CYLINDER
RESERVOIR COVER

27 (275, 20)

VENTILATION VALVE

ENGINE ROOM NO. 2
RELAY BLOCK

8.4 (86, 74 in.*lbf)

VENTILATION HOSE

N*m (kgf*cm, ft.*lbf) : Specified torque
A128677E01

EC–26

1NZ-FXE EMISSION CONTROL – VENTILATION VALVE

REMOVAL
1.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

2.

REMOVE REAR FLOOR DECK BOX (See page CH-4)

3.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

4.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

5.

REMOVE ENGINE ROOM NO. 2 RELAY BLOCK
(a) Remove the 2 bolts and relay block.
(b) Remove the 4 wire harness clamps.

6.

REMOVE AIR CLEANER ASSEMBLY
(a) Loosen the clamp, then disconnect the No. 1 air
cleaner inlet from the air cleaner case.

EC

A087418E02

A086911E01

(b) Disconnect the mass air flow meter connector, then
remove the wire harness clamp.
(c) Loosen the 2 clamps, then remove the 2 bolts and
air cleaner assembly.

A087334E01

1NZ-FXE EMISSION CONTROL – VENTILATION VALVE

7.

EC–27

REMOVE WIRE HARNESS
(a) Disconnect the fuel injector connector and ignition
coil connector.
(b) Remove the 3 bolts and wire harness clamp, then
disconnect the wire harness.

A087340E01

(c) Remove the brake master cylinder reservoir cover.

EC

A087341E01

8.

REMOVE VENTILATION VALVE
(a) Disconnect the ventilation hose.
(b) Remove the ventilation valve.

A128678

Cylinder Head Side

Clean Hose
A059511E11

INSPECTION
1.

INSPECT VENTILATION VALVE
(a) Check the ventilation.
(1) Install a clean hose to the ventilation valve as
illustration.
(2) Check that there is ventilation when air is
applied to the cylinder head side.
CAUTION:
Do not suck the air inside the ventilation
valve because it is harmful.
If there is no ventilation, replace the ventilation
valve.

EC–28

1NZ-FXE EMISSION CONTROL – VENTILATION VALVE

(3) Check that there no ventilation when air is
applied to the intake manifold side.
If there is ventilation, replace the ventilation
valve.

Intake Manifold Side

Clean Hose
A059512E10

INSTALLATION
1.

INSTALL VENTILATION VALVE
(a) Install the ventilation valve onto the cylinder head
cover.
Torque: 27 N*m (275 kgf*cm, 20 ft.*lbf)

2.

INSTALL ENGINE WIRE
(a) Install the brake master cylinder reservoir cover to
the cylinder head cover.

EC
A128678

A087341E01

(b) Install the wire harness and brake master cylinder
reservoir cover with the 3 bolts.
Torque: 9.0 N*m (92 kgf*cm, 80 in.*lbf)
(c) Connect the fuel injector connector and ignition coil
connector.

A087340E01

1NZ-FXE EMISSION CONTROL – VENTILATION VALVE

3.

EC–29

INSTALL AIR CLEANER ASSEMBLY
(a) Install the air cleaner with the 2 bolts and tighten the
clamp.
Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf) for bolt
3.0 N*m (31 kgf*cm, 27 in.*lbf) for clamp

A087334E01

(b) Connect the No. 1 air cleaner inlet to the air cleaner
case, and then tighten the clamp.
Torque: 3.0 N*m (31 kgf*cm, 27 in.*lbf)

EC
A086911E01

4.

INSTALL ENGINE ROOM NO. 2 RELAY BLOCK
(a) Install the relay block with the 2 bolts.
Torque: 8.4 N*m (86 kgf*cm, 74 in.*lbf)

5.

CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)

6.

INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)

7.

INSTALL REAR DECK FLOOR BOX (See page CH-8)

8.

INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)

A087418E02

EC–30

1NZ-FXE EMISSION CONTROL – CANISTER PRESSURE SWITCHING VALVE

CANISTER PRESSURE SWITCHING VALVE
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS
PURGE LINE HOSE
PRESSURE SWITCHING
VALVE CONNECTOR

PURGE LINE HOSE

EC

PURGE LINE HOSE

PRESSURE SWITCHING VALVE

N*m (kgf*cm, ft.*lbf) : Specified torque

2.9 (30, 26 in.*lbf)
A128664E01

1NZ-FXE EMISSION CONTROL – CANISTER PRESSURE SWITCHING VALVE

EC–31

REMOVAL
1.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

2.

REMOVE REAR DECK FLOOR BOX (See page CH-4)

3.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

4.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

5.

REMOVE PRESSURE SWITCHING VALVE
(a) Disconnect the pressure switching valve connector.
(b) Disconnect the 3 canister hoses from the pressure
switching valve.

A087519E01

(c) Remove the bolt, then remove the pressure
switching valve.

A087520E01

EC

EC–32

1NZ-FXE EMISSION CONTROL – CANISTER PRESSURE SWITCHING VALVE

INSPECTION
1.

INSPECT PRESSURE SWITCHING VALVE
(a) Inspect the resistance.
(1) Measure the resistance between the terminals.
Standard resistance

Tester Connection

Specified Condition

1-2

36 to 42 Ω at 20°C (68°F)

1 - Valve body

10 kΩ or higher

2 - Valve body

10 kΩ or higher

If the result is not as specified, replace the
pressure switching valve.

EC

Body
A132955E01

(b) Check the ventilation.
(1) Check that there is no ventilation from port E to
port F.
If there is ventilation, replace the pressure
switching valve.

Air

F

E

A087464E01

(2) Apply battery voltage across the terminals.
(3) Check that there is ventilation from port F when
air is applied to port G.
If there is no ventilation, replace the pressure
switching valve.

F

G
Battery
Air
A087465E01

INSTALLATION
1.

A087520E01

INSTALL PRESSURE SWITCHING VALVE
(a) Install the pressure switching valve with the bolt.
Torque: 2.9 N*m (30 kgf*cm, 26 in.*lbf)

1NZ-FXE EMISSION CONTROL – CANISTER PRESSURE SWITCHING VALVE

EC–33

(b) Connect the 3 canister hoses to the pressure
switching valve.
(c) Connect the pressure switching valve.
2.

CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)

3.

INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)

4.

INSTALL REAR DECK FLOOR BOX (See page CH-8)

5.

INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)

6.

PERFORM INITIALIZATION
(a) Perform initialization (see page IN-32).
NOTICE:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.

A087519E01

EC

EC–34

1NZ-FXE EMISSION CONTROL – FUEL TANK PRESSURE SENSOR

FUEL TANK PRESSURE SENSOR
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS
LOWER CENTER INSTRUMENT PANEL FINISH PANEL

x2

CLIP

CLIP

EC

POWER OUTLET CONNECTOR

GASKET
FRONT FLOOR CARPET
COMPRESSION SPRING
FRONT EXHAUST PIPE

43 (440, 32)

x2

GASKET
x2

43 (440, 32)

x4
COMPRESSION SPRING
N*m (kgf*cm, ft.*lbf) : Specified torque

30 (302, 22)

FRONT FLOOR PANEL BRACE

Non-reusable part
A131462E03

1NZ-FXE EMISSION CONTROL – FUEL TANK PRESSURE SENSOR

EC–35

REAR SEAT CUSHION ASSEMBLY

REAR FLOOR SERVICE HOLE COVER

FUEL TANK INLET PIPE SUB-ASSEMBLY

EC
WIRE TO WIRE CONNECTOR

FUEL TUBE CONNECTOR

FUEL PUMP CONNECTOR

FUEL FILLER PIPE CLAMP

NO. 1 FUEL TANK BAND
SUB-ASSEMBLY RH

FUEL TANK SUB-ASSEMBLY

NO. 1 FUEL TANK BAND
SUB-ASSEMBLY LH

x2
39 (400, 29)

x2
39 (400, 29)

N*m (kgf*cm, ft.*lbf) : Specified torque
A131463E03

EC–36

1NZ-FXE EMISSION CONTROL – FUEL TANK PRESSURE SENSOR

FUEL TANK PRESSURE SENSOR

EC

TUBE JOINT CLIP

FUEL TANK RETAINER LH

FUEL TANK BREATHER
TUBE GASKET

Non-reusable part
A128661E01

1NZ-FXE EMISSION CONTROL – FUEL TANK PRESSURE SENSOR

EC–37

ON-VEHICLE INSPECTION
1.

CHECK FUEL TANK PRESSURE SENSOR
(a) Inspect the voltage.
(1) Turn the power switch ON (IG).
(2) Measure the voltage between the terminals.
Standard voltage

Tester Connection

Specified Condition

1-3

4.5 to 5.5 V

A088404E02

(3) Remove the fuel tank cap.
(4) Measure the voltage between the terminals.
Standard voltage
Tester Connection

Specified Condition

2-3

3.0 to 3.6 V

(5) Reinstall the fuel tank cap.
(6) Turn the power switch OFF.

EC
A088235E02

EC–38

1NZ-FXE EMISSION CONTROL – FUEL TANK PRESSURE SENSOR

REMOVAL
1.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

2.

REMOVE REAR DECK FLOOR BOX (See page CH-4)

3.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

4.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

5.

REMOVE LOWER CENTER INSTRUMENT PANEL
FINISH PANEL (See page IP-18)

6.

REMOVE REAR SEAT CUSHION ASSEMBLY (See
page SE-15)

7.

REMOVE REAR FLOOR SERVICE HOLE COVER (See
page FU-23)

8.

REMOVE FRONT FLOOR PANEL BRACE (See page
EX-2)

9.

REMOVE FRONT EXHAUST PIPE (See page EC-9)

EC

10. REMOVE FUEL TANK SUB-ASSEMBLY (See page
FU-23)
11. REMOVE FUEL TANK PRESSURE SENSOR
(a) Disconnect the fuel tank pressure sensor connector.

A088377E01

(b) Remove the tube joint clip, then pull out the fuel tank
pressure sensor from the fuel tank retainer.
Pull Out

Tube Joint Clip
A087499E01

1NZ-FXE EMISSION CONTROL – FUEL TANK PRESSURE SENSOR

EC–39

NOTICE:
• Remove dirt or foreign objects on fuel tank
pressure sensor before this work.
• Do not allow any scratches or foreign objects
on the parts when disconnecting as the fuel
tank pressure sensor has the O-ring that
seals the plug.
• Perform this work by hand. Do not use any
tools.

Tube Joint Clip

O-Ring
Fuel Tank Pressure Sensor
A089469E02

INSTALLATION

Push

1.

Tube Joint Clip
A087518E01

INSTALL FUEL TANK PRESSURE SENSOR
(a) Push the fuel tank pressure sensor to the plug of the
fuel tank retainer, then install the tube joint clip.
NOTICE:
• Check that there are no scratches or foreign
objects around the connected part of the fuel
tank pressure sensor and fuel tank retainer
before this work.
• Check that the fuel tank pressure sensor is
securely inserted to the end.
• Check that the tube joint clip is on the collar
of the fuel tank pressure sensor.
• After installing the tube joint clip, check that
the fuel tank pressure sensor cannot be
pulled out.
(b) Connect the fuel tank pressure sensor connector.

2.

INSTALL FUEL TANK SUB-ASSEMBLY (See page FU35)

3.

INSTALL FRONT EXHAUST PIPE (See page EC-12)

4.

CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)

5.

CHECK FOR FUEL LEAKS (See page FU-8)

6.

CHECK FOR EXHAUST GAS LEAKS (See page EX-4)

7.

INSTALL FRONT FLOOR PANEL BRACE (See page
EX-4)

8.

INSTALL REAR FLOOR SERVICE HOLE COVER (See
page FU-38)

9.

INSTALL REAR SEAT CUSHION ASSEMBLY (See
page SE-23)

10. INSTALL LOWER CENTER INSTRUMENT PANEL
FINNISH PANEL (See page IP-21)
11. INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)
12. INSTALL REAR DECK FLOOR BOX (See page CH-8)
13. INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)

EC

EC–40

1NZ-FXE EMISSION CONTROL – FUEL TANK PRESSURE SENSOR

14. PERFORM INITIALIZATION
(a) Perform initialization (see page IN-32).
NOTICE:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.

EC

EC–40

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

AIR FUEL RATIO SENSOR
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS
Clip
x6

RADIATOR SUPPORT OPENING COVER

EC

ENGINE UNDER COVER RH

x3
x2
ENGINE UNDER COVER LH
x3 x2

x4

N*m (kgf*cm, ft.*lbf) : Specified torque
A116928E02

EC–41

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

FRONT WIPER ARM RH

FRONT WIPER ARM COVER
FRONT WIPER ARM LH

21 (214, 15)

21 (214, 15)

x2

HOOD TO COWL TOP SEAL

CLIP

EC

COWL TOP VENTILATOR LOUVER RH
COWL TOP VENTILATOR LOUVER LH

CLIP

5.5 (56, 49 in.*lbf)

x5

WINDSHIELD WIPER MOTOR CONNECTOR

WINDSHIELD WIPER MOTOR
AND LINK ASSEMBLY

6.4 (65, 57 in.*lbf)

ENGINE ROOM NO. 2
RELAY BLOCK
x2
8.4 (86, 74 in.*lbf)

FRONT COWL TOP PANEL OUTER

N*m (kgf*cm, ft.*lbf) : Specified torque
A124444E08

EC–42

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

x 12

11 (112, 8.1)

INVERTER COVER
11 (112, 8.1)

NO. 2 INVERTER COOLING HOSE

EC

NO. 1 INVERTER
COOLING HOSE

ENGINE ROOM MAIN
WIRE HARNESS

NO. 1 CIRCUIT BREAKER SENSOR
CONNECTOR

NO. 6 INVERTER COOLING HOSE

N*m (kgf*cm, ft.*lbf) : Specified torque
A124445E03

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

EC–43

21 (214, 16)
21 (214, 16)

8.0 (82, 71 in.*lbf)

EC
21 (214, 16)

8.0 (82, 71 in.*lbf)

8.0 (82, 71 in.*lbf)

MG2 POWER CABLE
8.0 (82, 71 in.*lbf)

CONVERTER WITH
INVERTER ASSEMBLY
MG1 POWER CABLE

N*m (kgf*cm, ft.*lbf) : Specified torque
A124446E04

EC–44

EC

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

AIR FUEL RATIO
SENSOR CONNECTOR

WIRE HARNESS CLAMP

N*m (kgf*cm, ft.*lbf) : Specified torque

44 (449, 32)*1
40 (408, 30)*2

AIR FUEL RATIO SENSOR
(for Bank 1 Sensor 1)

*1: For use with SST
*2: For use without SST
A128669E01

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

EC–45

ON-VEHICLE INSPECTION
E5

1.

A088403E02

Intelligent Tester

DLC3
A087542E01

Keep the Engine Speed
Lean
Airfuel
14.7 Ratio

3.3 V

Rich
Time

A086385E02

CHECK AIR FUEL RATIO COMPENSATION SYSTEM
(a) Inspect the voltage.
(1) Turn the power switch ON (IG).
(2) Using a voltmeter, measure the voltage
between the ECM terminals.
Standard voltage

Tester Connection

Specified Condition

E5-23 (A1A+) - E5-28 (E1)

3.0 to 3.6 V

E5-22 (A1A-) - E5-28 (E1)

2.7 to 3.3 V

NOTICE:
Connect the test leads from the backside of
the connector with the ECM connector
connected.
HINT:
The voltage between the ECM terminals is
constant regardless of the output voltage of the
air-fuel ratio sensor.
If the result is not as specified, check the airfuel ratio sensor and wire harness.
(b) Check the output waveform.
(1) Set the vehicle to inspection mode (see page
IN-34).
(2) Connect the intelligent tester to the DLC3.
(3) Turn the power switch ON (READY).
(4) Turn the intelligent tester ON.
(5) Select the item: DIAGNOSIS / ENHANCED
OBD II / DATA LIST / PRIMARY / AFS B1 S1.
(6) Warm up the air fuel ratio sensor for
approximately 2 minutes at 2,500 rpm of the
engine speed.
(7) Maintain the engine speed at 2,500 rpm, then
check that the waveform of "AFS B1 S1" is
output as illustrated.
HINT:
• The waveform of illustration is a sample.
• Only the intelligent tester shows the
waveform of the air fuel ratio sensor.
(8) Check that "O2S B1 S2" fluctuates between 0
and 1 V with the engine speed at 2,500 rpm.

EC

EC–46

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

REMOVAL

EC

1.

PRECAUTION
CAUTION:
The hybrid system uses high voltage circuits, so
improper handling could cause an electric shock or
leakage. During service (e.g. installing or removing
the parts, inspection, replacing the parts), be sure to
follow the procedures (see page HV-519).

2.

REMOVE RADIATOR SUPPORT OPENING COVER
(See page ED-2)

3.

REMOVE ENGINE UNDER COVER LH

4.

REMOVE ENGINE UNDER COVER RH

5.

DRAIN HV COOLANT (See page HX-58)

6.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

7.

REMOVE REAR DECK FLOOR BOX (See page CH-4)

8.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

9.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

10. REMOVE SERVICE PLUG GRIP (See page HB-154)
11. REMOVE FRONT WIPER ARM COVER
12. REMOVE FRONT WIPER ARM LH (See page WW-13)
13. REMOVE FRONT WIPER ARM RH (See page WW-13)
14. REMOVE HOOD TO COWL TOP SEAL (See page
WW-13)
15. REMOVE COWL TOP VENTILATOR LOUVER LH (See
page WW-13)
16. REMOVE COWL TOP VENTILATOR LOUVER RH (See
page WW-13)
17. REMOVE WINDSHIELD WIPER MOTOR AND LINK
ASSEMBLY (See page WW-13)
18. REMOVE FRONT COWL TOP PANEL OUTER (See
page FU-12)
19. REMOVE INVERTER COVER (See page HV-531)
20. VERIFY THAT VOLTAGE OF INVERTER WITH
CONVERTER IS 0 V (See page HV-532)
21. DISCONNECT NO. 2 INVERTER COOLING HOSE
(See page HV-532)

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

EC–47

22. DISCONNECT NO. 1 INVERTER COOLING HOSE
(See page HV-532)
23. DISCONNECT NO. 6 INVERTER COOLING HOSE
(See page HV-533)
24. DISCONNECT NO. 1 CIRCUIT BREAKER SENSOR
(See page HV-533)
25. DISCONNECT FRAME WIRE (See page HV-533)
26. REMOVE CONVERTER WITH INVERTER ASSEMBLY
(See page HV-533)
27. REMOVE AIR FUEL RATIO SENSOR (for Bank 1
Sensor 1)
(a) Remove the wire harness clamp from the air fuel
ratio sensor.
(b) Disconnect the air fuel ratio sensor connector.
(c) Using SST, remove the air fuel ratio sensor.
SST 09224-00010
SST
A087473E01

INSPECTION
1.

INSPECT AIR FUEL RATIO SENSOR
(a) Measure the resistance between the terminals.
Standard resistance

Tester Connection

Specified Condition

1 (HT) - 2 (+B)

1.8 to 3.4 Ω at 20°C (68°F)

2 (+B) - 4 (AF-)

10 kΩ or higher

If the result is not as specified, replace the sensor.

A087458E02

INSTALLATION
1.

INSTALL AIR FUEL RATIO SENSOR (for Bank 1
Sensor 1)
(a) Using SST, install the sensor.
SST 09224-00010
Torque: 44 N*m (449 kgf*cm, 32 in.*lbf) for use
with SST
40 N*m (408 kgf*cm, 30 ft.*lbf) for use
without SST
HINT:
Use a torque wrench with a fulcrum length of 30 cm
(11.81 in.).
(b) Connect the sensor connector.
(c) Install the wire harness clamp to the sensor.

2.

INSTALL CONVERTER WITH INVERTER ASSEMBLY
(See page HV-536)

3.

CONNECT FRAME WIRE (See page HV-537)

4.

CONNECT NO. 1 CIRCUIT BREAKER SENSOR (See
page HV-537)

5.

CONNECT NO. 6 INVERTER COOLING HOSE

SST
A087473E01

EC

EC–48

1NZ-FXE EMISSION CONTROL – AIR FUEL RATIO SENSOR

6.

CONNECT NO. 1 INVERTER COOLING HOSE

7.

CONNECT NO. 2 INVERTER COOLING HOSE

8.

INSTALL INVERTER COVER (See page HV-538)

9.

INSTALL FRONT COWL TOP PANEL OUTER (See
page FU-19)

10. INSTALL WINDSHIELD WIPER MOTOR AND LINK
ASSEMBLY (See page WW-16)
11. INSTALL COWL TOP VENTILATOR LOUVER RH
12. INSTALL COWL TOP VENTILATOR LOUVER LH
13. INSTALL HOOD TO COWL TOP SEAL
14. INSTALL FRONT WIPER ARM LH (See page WW-16)
15. INSTALL FRONT WIPER ARM RH (See page WW-16)
16. INSTALL FRONT WIPER ARM COVER

EC

17. INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)
18. INSTALL REAR DECK FLOOR BOX (See page CH-8)
19. INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)
20. INSTALL SERVICE PLUG GRIP (See page HB-154)
21. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)
22. ADD HV COOLANT (See page HX-58)
23. CHECK FOR ENGINE COOLANT LEAKAGE (See
page HX-59)
24. INSTALL ENGINE UNDER COVER RH
25. INSTALL ENGINE UNDER COVER LH
26. INSTALL RADIATOR SUPPORT OPENING COVER
(See page CO-9)
27. PERFORM INITIALIZATION
(a) Perform initialization (see page IN-32).
NOTICE:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.

1NZ-FXE EMISSION CONTROL – HEATED OXYGEN SENSOR

EC–49

HEATED OXYGEN SENSOR
1NZ-FXE EMISSION CONTROL
ENGINE

COMPONENTS

LOWER CENTER INSTRUMENT
PANEL FINISH PANEL

x2

EC
POWER OUTLET CONNECTOR

FRONT FLOOR CARPET

44 (449, 32)*1
40 (408, 30)*2

HEATED OXYGEN SENSOR
(for Bank 1 Sensor 2)

WIRE HARNESS BRACKET

N*m (kgf*cm, ft.*lbf) : Specified torque
*1: For use with SST
*2: For use without SST
A131460E01

EC–50

1NZ-FXE EMISSION CONTROL – HEATED OXYGEN SENSOR

REMOVAL

EC

1.

REMOVE REAR NO. 2 FLOOR BOARD (See page CH4)

2.

REMOVE REAR DECK FLOOR BOX (See page CH-4)

3.

REMOVE REAR NO. 3 FLOOR BOARD (See page CH4)

4.

DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.

5.

REMOVE LOWER CENTER INSTRUMENT PANEL
FINISH PANEL (See page IP-18)

6.

REMOVE HEATED OXYGEN SENSOR (for Bank 1
Sensor 2)
(a) Using a clip remover, remove the clip.
(b) Fold back the floor carpet front.

A087436E01

(c) Disconnect the sensor connector.
(d) Remove the grommet of the sensor from the
vehicle.

A087437E01

(e) Remove the wire harness clamp bracket from the
sensor.
(f) Using SST, remove the sensor.
SST 09224-00010

SST

A087474E01

1NZ-FXE EMISSION CONTROL – HEATED OXYGEN SENSOR

EC–51

INSPECTION
1.

INSPECT HEATED OXYGEN SENSOR
(a) Measure the resistance between the terminals.
Standard resistance

Tester Connection

Specified Condition

1 (HT) - 2 (+B)

11 to 16 Ω at 20°C (68°F)

1 (HT) - 4 (E)

10 kΩ or higher

If the result is not as specified, replace the sensor.

A087459E03

INSTALLATION
1.
SST

A087474E01

INSTALL HEATED OXYGEN SENSOR (for Bank 1
Sensor 2)
(a) Using SST, install the sensor.
SST 09224-00010
Torque: 44 N*m (449 kgf*cm, 32 in.*lbf) for use
with SST
40 N*m (408 kgf*cm, 30 ft.*lbf) for use
without SST
HINT:
Use a torque wrench with a fulcrum length of 30 cm
(11.81 in.).
(b) Install the wire harness clamp bracket to the sensor.
(c) Install the grommet of the sensor to the vehicle.
(d) Connect the sensor connector.
(e) Install the floor carpet front with the clip.

2.

CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL (See page CH-7)

3.

CHECK FOR EXHAUST GAS LEAKS (See page EX-4)

4.

INSTALL LOWER CENTER INSTRUMENT PANEL
FINISH PANEL (See page IP-21)

5.

INSTALL REAR NO. 3 FLOOR BOARD (See page CH8)

6.

INSTALL REAR DECK FLOOR BOX (See page CH-8)

7.

INSTALL REAR NO. 2 FLOOR BOARD (See page CH8)

8.

PERFORM INITIALIZATION
(a) Perform initialization (see page IN-32).
NOTICE:
Certain systems need to be initialized after
disconnecting and reconnecting the cable from
the negative (-) battery terminal.

EC

EC–52

1NZ-FXE EMISSION CONTROL – FUEL TANK CAP

FUEL TANK CAP
INSPECTION
1.

Gasket
A091723E01

EC

INSPECT FUEL TANK CAP
(a) Check the appearance.
(1) Check that there is no deformation or damage
on the fuel tank cap and gasket.
If there are any defects, replace the fuel tank
cap.