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
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
)
(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
)
(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
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