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21 CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
© GO TO 22.
22 CHECK REFUELING EVAP VAPOR LINE
Check refueling EVAP vapor line between EVAP canister and fuel tank for clogging, kink, looseness and improper connec-
tion. For location, refer to “EVAPORATIVE EMISSION LINE DRAWING”, EC-40.
OK or NG
OK © GO TO 23.
NG © Repair or replace hoses and tubes.
23 CHECK SIGNAL LINE AND RECIRCULATION LINE
Check signal line and recirculation line between filler neck tube and fuel tank for clogging, kink, cracks, looseness and
improper connection.
OK or NG
OK © GO TO 24.
NG © Repair or replace hoses, tubes or filler neck tube.
24 CHECK REFUELING CONTROL VALVE
1. Remove fuel filler cap.
2. Check air continuity between hose ends A and B.
Blow air into hose end B. Air should flow freely into the fuel tank.
3. Blow air into hose end A and check that there is no leakage.
4. Apply pressure to both hose ends A and B [20 kPa (150 mmHg, 5.91 inHg)] using a pressure pump and a suitable
3-way connector. Check that there is no leakage.
SEF830X
OK or NG
OK © GO TO 25.
NG © Replace or refueling control valve with fuel tank.
DTC P0456 EVAP CONTROL SYSTEM
Diagnostic Procedure (Cont’d)
EC-430
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