Toyota Celica 2005, Repair Manual

Page: 727 / 2497

DI − 528
− DIAGNOSTICS ENGINE (2ZZ − GE)
2005 CELICA (RM1131U)
Time after engine start − 50 min.
Fuel tank pressure change before vacuum
introduction
Minimum change
Fuel level − 90%
Purge VSV malfunction Not detected
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria Threshold
P0456 (0.020 inch leak):
Both of the following conditions are met: Condition 1 and 2
1. Fuel tank pressure change for 5 sec. when fuel tank pres-
sure is
− 2.0 kPa ( − 15 mmHg)
0.067 kPa (0.5 mmHg) or more
2. Fuel tank pressure change for 5 sec. when fuel tank pres-
sure is
− 2.7 kPa ( − 20 mmHg)
0.067 kPa (0.5 mmHg) or more
P0442 (0.040 inch leak):
Both of the following conditions are met: Condition 1 and 2
1. Fuel tank pressure change for 5 sec. when fuel tank pres-
sure is
− 2.0 kPa ( − 15 mmHg)
0.24 kPa (1.8 mmHg) or more
2. Fuel tank pressure change for 5 sec. when fuel tank pres-
sure is
− 2.7 kPa ( − 20 mmHg)
0.24 kPa (1.8 mmHg) or more
Refer to page DI − 295 for detailed information on Checking Monitor Status.
MONITOR RESULT
Refer to page DI − 295 for detailed information.
The test value and test limit information are described as shown in the following table. Check the monitor
result and test values after performing the monitor drive pattern (see page DI
− 326).
S
TID (Test Identification Data) is assigned to each emissions − related component.
S
TLT (Test Limit Type):
If TLT is 0, the component is malfunctioning when the test value is higher than the test limit.
If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
S
CID (Component Identification Data) is assigned to each test value.
S
Unit Conversion is used to calculate the test value indicated on generic OBD ll scan tools.
TID $02: EVAP system − Vacuum monitor
TLT CID Unit Conversion Description of Test Data Description of Test Limit
1 $01
Multiplied by 0.0916
(mmHg)
Test value of EVAP VSV:
Determined by fuel tank pressure change
during vacuum introduction
Malfunction criteria for EVAP VSV
1 $02
Multiplied by 0.0458 subtract
2.93
(mmHg)
Test value of canister closed valve (CCV)
and bypass VSV:
Determined by fuel tank pressure change
at switching over CCV and bypass VSV
Malfunction criteria for CCV and bypass
VSV
0 $03
Multiplied by 0.0458
(mmHg) Test value of 0.04 inch leak:
Determined by fuel tank pressure change
Malfunction criteria for 0.04 inch leak
0 $04
Multiplied by 0.0458
(mmHg) Test value of 0.02 inch leak:
Determined by fuel tank pressure change
Malfunction criteria for 0.02 inch leak
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