Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 6

1GR-FE EMISSION CONTROL  –  EMISSION CONTROL SYSTEM

EC–5

EC

(f)

Maintain the engine speed at 2,500 rpm and confirm 
that the display on the intelligent tester, when AFS 
B1 S1 is selected, is as shown in the illustration.
HINT:
•

The display on the intelligent tester may slightly 
differ from the illustration.

•

Only the intelligent tester displayed the waveform 
of the A/F sensor.

(g) Confirm that the waveform displays on the 

intelligent tester, when O2S B1 S2 is selected, 
changes between 0 V and 1 V with the engine 
speed at 2,500 rpm.
OK:

The voltage output oscillates more than 8 
times in 10 seconds.

CAUTION:
•

Perform the check immediately after warming 
up the engine.

•

If the voltage variation could not be verified, 
warm up the heated oxygen sensor again. If it 
could not be verified even after warming up 
the sensor again, check the DTC No. (See 
page

ES-57

)

2.

INSPECT FUEL CUT-OFF RPM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating 

sounds.

(c) Check that the injector operating sounds stop 

momentarily and then resume when the accelerator 
pedal is released.
Fuel cut off rpm:

2,500 rpm

Fuel return rpm:

1,200 rpm

3.

VISUALLY INSPECT HOSES, CONNECTIONS AND 
GASKETS
(a) Check the appearance.

(1) Check if the indicated portions of the engine 

assembly are cracked, leaking or damaged.
HINT:
Disconnection of the engine oil level gauge, oil 
filler cap, PCV hose, etc. may cause the engine 
to run improperly. Disconnected, loose or 
cracked parts in the air induction system 
between the throttle body and cylinder head will 
allow air suction and cause the engine to run 
improperly.
If necessary, repair the engine assembly.

4.

INSPECT FUEL CUT OFF VALVE AND FILL CHECK 
VALVE
(a) Disconnect the vent line hose from the fuel tank. 

(See page

FU-45

)

(b) Connect the pressure gauge to the vent hose port.

Air-fuel 
Ratio

Keep Engine Speed

Time

(V)

3.3V

Lean

14.6

Rich

A118498E01

A075917E01

EC–6

1GR-FE EMISSION CONTROL  –  EMISSION CONTROL SYSTEM

EC

(c) Fill the fuel tank with fuel.

(d) Apply pressure at 4 kPa (0.04 kgf*cm

2

, 0.58 psi) to 

the vent port of the fuel tank.
HINT:
Check the amount of fuel left in the fuel tank.

(e) Remove the fuel tank cap, and check that the 

pressure decreases.
If the pressure does not decrease, replace the fuel 
tank assembly.

(f)

Reconnect the vent line hose to the fuel tank.

5.

CHECK AIR INLET LINE
(a) Disconnect the air inlet line hose from the charcoal 

canister. (See page

EC-9

)

(b) Check that air flows freely into the air inlet line.

If air does not flow freely into the air inlet line, repair 
or replace the air inlet line.

(c) Reconnect the air inlet line hose to the charcoal 

canister.

Fuel Tank Cap

A129960E01

Air

Air Inlet Line Hose

A129961E01

1GR-FE EMISSION CONTROL  –  EMISSION CONTROL SYSTEM

EC–7

EC

6.

INSPECT LEAK DETECTION PUMP PRESSURE 
SENSOR
(a) Measure the power source voltage of the ECM 

connectors.
Standard voltage

If the voltage is not as specified, check the ECM, 
leak detection pump and wire harness.

(b) Measure the power output voltage of the ECM 

connectors.
(1) Remove the fuel tank cap.

Standard voltage

If the voltage is not as specified, check the 
ECM, leak detection pump and wire harness.

(2) Install the fuel tank cap.

A

B

C

D

E

VC(+)

E2(+)

PPMP(+)

Pressure Sensor Specification

Malfunction Area

Output Voltage

4.900V

4.150V

1.425V

0.450V

60 kPa 110 kPa Pressure

HINT:
Standard Atmospheric Pressure:101.3 kPa

Usable Range

Malfunction Area

G036145E01

Tester Connection

Condition

Specified Condition

A23 (VC) - A28 (E2)

Ignition switch ON

4.5 to 5.5 V

Tester Connection

Condition

Specified Condition

E22 (PPMP) - A28 (E2)

Ignition switch ON

1.425 to 4.150 V

EC–8

1GR-FE EMISSION CONTROL  –  CANISTER

EC

ENGINE

1GR-FE EMISSION CONTROL

CANISTER

COMPONENTS

CHARCOAL CANISTER ASSEMBLY

NO. 2 CANISTER 
OUTLET HOSE 
SUB-ASSEMBLY

EVAP HOSE

FUEL TANK VENT HOSE

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

20 (204, 15)

20 (204, 15)

A129924E01