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P0455 EVAP CONTROL SYSTEM EC-329 < DTC/CIRCUIT DIAGNOSIS > [VQ35HR] C D E F G H I J K L M A EC N P O 8. CHECK FOR EVAP LEAK . Is there any leak in EVAP line? YES >> Repair or replace malfunctioning part. NO-1 >> With CONSULT-III: GO TO 9. NO-2 >> Without CONSULT-III: GO TO 10. 9. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION With CONSULT-III 1. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser- 2. Start engine and let it idle. 3. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode. 4. Touch “Qu” on CONSULT-III screen to increase “PURG VOL CONT/V” opening to 100%. 5. Check vacuum hose for vacuum. Is the inspection result normal? YES >> GO TO 12. NO >> GO TO 11. 10. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION Without CONSULT-III 1. Start engine and warm it up to normal operating temperature. 2. Stop engine. 3. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser- 4. Start engine and let it idle for at least 80 seconds. 5. Check vacuum hose for vacuum when revving engine up to 2,000 rpm. Is the inspection result normal? YES >> GO TO 13. NO >> GO TO 11. 11. CHECK VACUUM HOSE Check vacuum hoses for clogging or disconnection. Refer to Is the inspection result normal? YES-1 >> With CONSULT-III: GO TO 12. >> Repair or reconnect the hose. 12. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE With CONSULT-III 1. Start engine. 2. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III. Check that engine speed var- Does engine speed vary according to the valve opening? YES >> GO TO 14. NO >> GO TO 13. 13. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE EC-299, "Component Inspection" Is the inspection result normal? YES >> GO TO 14. NO >> Replace EVAP canister purge volume control solenoid valve. Vacuum should exist. Vacuum should exist. |