Toyota 2GR-FE Manual page 577

A
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)
Result
DTCs*
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
No variation in EVAP pressure despite
P2420
proceeding from step 2/5 to step 3/5
No variation in EVAP pressure during steps 1/
P0451
5 through 3/5
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
B
C
D
2/5
Within 15 minutes
(a) Check the EVAP pressure increase in step 3/5.
Test Results
*: These DTCs are already present in the ECM when the
vehicle arrives and are confirmed in the "CONFIRM
DTC" procedures above.
B
Go to step 11
Go to step 29
Go to step 20
ON
ON
ON
Vent Valve Stuck
Open (vent)
3/5
Suspected Trouble Areas
Not yet determined
Vent valve stuck open (vent)
Canister pressure sensor malfunction fixed
Go to step 19
ES–421
ON: Open
ES
OFF: Closed
ON: Closed
OFF: Vent
A106739E05
Proceed to
A
B
C