Toyota FJ Cruiser (GSJ 10, 15 series). Manual — part 103
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–367
ES
(a) Check the EVAP pressure in steps 1/5 and 2/5.
Result
*
: These DTCs are already present in the ECM when the
vehicle arrives and are confirmed in step 1.
HINT:
The first reference pressure is the value determined in
step 2/5.
B
A
5
PERFORM EVAP SYSTEM CHECK (STEP 1/5 TO 2/5)
Purge VSV
Vent Valve
Leak Detection
Pump
EVAP Pressure
Positive
Negative
First Reference
Pressure
Steps
Time
(Reference)
10 seconds
1/5
2/5
Leak Detection Pump Stuck ON
ON
ON
ON
ON: Open
OFF: Closed
ON: Closed
OFF: Vent
60
seconds
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DTCs
*
Test Results
Suspected Trouble Areas
Proceed To
-
Virtually no variation in EVAP pressure during step 1/5. Then
decreases to reference pressure
Not yet determined
A
P2402
Small difference between EVAP pressures during steps 1/5 and 2/5
Leak detection pump stuck ON
B
Go to step 23
ES–368
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
HINT:
Make a note of the pressures checked in steps (a) and (b)
below.
(a) Check the EVAP pressure 4 seconds after the leak
detection pump is activated
*
.
*
: The leak detection pump begins to operate as step 1/5
finishes and step 2/5 starts.
(b) Check the EVAP pressure again when it has stabilized.
This pressure is the reference pressure.
Result
*: These DTCs are already present in the ECM when the
vehicle arrives and are confirmed in step 1.
6
PERFORM EVAP SYSTEM CHECK (STEP 2/5)
Purge VSV
Vent Valve
Leak Detection
Pump
EVAP Pressure
Positive
Negative
First Reference
Pressure
Standard
4 seconds
2/5
3/5
Within 15 minutes
60
seconds
Steps
Time
(Reference)
OK
Vent Valve Stuck Closed
Leak Detection Pump Stuck OFF
Reference Orifice High-flow
ON
ON
ON
ON: Open
OFF: Closed
OFF: Vent
ON: Closed
Reference Orifice Clogged
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DTCs
*
Test Results
Suspected Trouble Areas
Proceed To
-
EVAP pressure in step (b) between -
4.85 kPa-g and -1.057 kPa-g (-36.4
mmHg-g and -7.93 mmHg-g)
Not yet determined
A
P043F and P2401
EVAP pressure in step (b) -1.057 kPa-
g (-7.93 mmHg-g) or more
•
Reference orifice high-flow
•
Leak detection pump stuck OFF
B
P043E
EVAP pressure in step (b) below -4.85
kPa-g (-36.4 mmHg-g)
Reference orifice clogged
C
P2419
EVAP pressure in step (a) more than -
1.057 kPa-g (-7.93 mmHg-g)
Vent valve stuck closed
D
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–369
ES
B
C
D
A
(a) Check the EVAP pressure increase in step 3/5.
Result
*
: These DTCs are already present in the ECM when the
vehicle arrives and are confirmed in step 1.
B
Go to step 11
Go to step 30
Go to step 19
7
PERFORM EVAP SYSTEM CHECK (STEP 2/5 TO 3/5)
Purge VSV
Vent Valve
Leak Detection
Pump
EVAP Pressure
Positive
Negative
First Reference
Pressure
Steps
Time
(Reference)
ON
ON
ON
ON: Open
ON: Closed
OFF: Closed
OFF: Vent
Vent Valve Stuck
Open (vent)
3/5
2/5
Within 15 minutes
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DTCs
*
Test Results
Suspected Trouble Areas
Proceed To
-
EVAP pressure increases by 0.3 kPa-g (2.25 mmHg-
g) or more within 10 seconds of proceeding from
step 2/5 to step 3/5
Not yet determined
A
P2420
No variation in EVAP pressure despite proceeding
from step 2/5 to step 3/5
Vent valve stuck open (vent)
B
P0451
No variation in EVAP pressure during steps 1/5
through 3/5
Canister pressure sensor malfunction
fixed
C
Go to step 20
ES–370
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
C
A
(a) Wait until the EVAP pressure change is less than 0.1
kPa-g (0.75 mmHg-g) for 30 seconds.
(b) Measure the EVAP pressure and record it.
HINT:
A few minutes are required for the EVAP pressure to
become saturated. When there is little fuel in the fuel
tank, it takes up to 15 minutes.
NEXT
Go to step 30
8
PERFORM EVAP SYSTEM CHECK (STEP 3/5)
Purge VSV
Vent Valve
Leak Detection
Pump
EVAP Pressure
Positive
Negative
First Reference
Pressure
Steps
Time
(Reference)
ON
ON
ON
ON: Open
OFF: Closed
ON: Closed
OFF: Vent
3/5
Within 15 minutes
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