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NOTE:
I If the engine speed cannot be maintained within the range
displayed on CONSULT-II screen, go to “Basic
Inspection”, EC-123.
I Make sure that EVAP hoses are connected to EVAP canis-
ter purge volume control solenoid valve properly.
SEF462UA
Overall Function Check
NFEC1481
WITH GST
NFEC1481S01
Use this procedure to check the overall function of the EVAP very
small leak function. During this check, a DTC might not be con-
firmed.
CAUTION:
I Never use compressed air, doing so may damage the
EVAP system.
I Do not start engine.
I Do not exceeded 4.12 kPa (0.042 kg/cm
2
, 0.6 psi).
1) Attach the EVAP service port adapter securely to the EVAP
service port.
2) Set the pressure pump and a hose.
3) Also set a vacuum gauge via 3-way connector and a hose.
4) Turn ignition switch “ON”.
5) Connect GST and select mode 8.
6) Using mode 8 control the EVAP canister vent control valve
(close) and vacuum cut valve bypass valve (open).
7) Apply pressure and make sure the following conditions are
satisfied.
Pressure to be applied: 2.7 kPa (20 mmHg, 0.79 inHg)
Time to be waited after the pressure drawn in to the EVAP
system and the pressure to be dropped: 60 seconds and
the pressure should not be dropped more than 0.4 kPa (3
mmHg, 0.12 inHg)
If NG, go to diagnostic procedure, EC-606.
NOTE:
For more information, refer to GST instruction manual.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1456 EVAP CONTROL SYSTEM
DTC Confirmation Procedure (Cont’d)
EC-605
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