Toyota 2GR-FE Manual page 422

ES–266
EVAP canister vent valve
EVAP leak detection pump
Both of the following conditions 1 and 2 are met before
key-off
1. Duration that vehicle driven
2. EVAP purge operation
ECT
IAT
Key-off monitor sequence 1 to 8
1. Atmospheric pressure measurement
Next sequence is run if the following condition is met:
Atmospheric pressure measurement
2. First reference pressure measurement
ES
Next sequence is run if all of the following conditions
are met:
1. EVAP pressure just after reference pressure
measurement
2. Reference pressure
3. Reference pressure
3. EVAP canister vent valve close stuck check
Next sequence is run if the following condition is met:
EVAP pressure change after vent valve is ON
4. Vacuum introduction
Next sequence is run if the following condition is met:
Vacuum introduction time
5. EVAP canister purge valve close stuck check
Next sequence is run if the following condition is met:
EVAP pressure change after purge valve is open
6. Second reference pressure measurement
Next sequence is run if all of the following conditions
are met:
1. EVAP pressure just after reference pressure
2. Reference pressure
3. Reference pressure
4. Difference between first reference pressure and
second reference pressure
7. Leak check
Next sequence is run if the following condition is met
EVAP pressure when vacuum introduction was
complete
8. Atmospheric pressure measurement
EVAP monitor is complete if the following condition is
met:
Atmospheric pressure difference between sequence 1
and 8
TYPICAL MALFUNCTION THRESHOLDS
One of following conditions met
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Not operated by scan tool
Not operated by scan tool
Conditions 1 and 2
5 minutes or more
Performed
4.4 to 35°C (40 to 95°F)
4.4 to 35°C (40 to 95°F)
-
Less than 0.3 kPa (2.25 mmHg) in 1 second
Conditions 1, 2 and 3
-1 kPa (-7.5 mmHg) or less
-4.85 to -1.057 kPa (-36.384 to -7.929 mmHg)
Saturated within 1 minute
-
0.3 kPa (2.25 mmHg) or more
-
Saturated within 15 minutes
-
0.3 kPa (2.25 mmHg) or more
Conditions 1, 2, 3 and 4
-1 kPa (-7.5 mmHg) or less
-4.85 to -1.057 kPa (-36.384 to -7.929 mmHg)
Saturated
Less than 0.7 kPa (5.25 mmHg)
-
Lower than second reference pressure
-
Within 0.3 kPa (2.25 mmHg)
-