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Diagnostic Procedure
=NHEC0337
1 CHECK EVAP CANISTER
1. Turn ignition switch “OFF”.
2. Check EVAP canister for cracks.
OK or NG
OK (With CONSULT-II) © GO TO 2.
OK (Without CONSULT-
II)
© GO TO 3.
NG © Replace EVAP canister.
2 CHECK PURGE FLOW
With CONSULT-II
1. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP service port and
install vacuum gauge.
SEC022C
2. Start engine and let it idle.
3. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-II.
4. Rev engine up to 2,000 rpm.
5. Touch “Qd” and “Qu” on CONSULT-II screen to adjust “PURG VOL CONT/V” opening and check vacuum existence.
SEF012Z
OK or NG
OK © GO TO 7.
NG © GO TO 4.
DTC P1447 EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM PURGE
FLOW MONITORING
Diagnostic Procedure
EC-556
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