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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1456: EVAP Control System >> Diagnostic Procedure >> 13. Check EVAP Canister Purge Volume Control Solenoid Valve Operation >> With CONSULT-II

With CONSULT-II

  1. Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.
  2. Start engine.
  3. Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode.
    Fig 1: Scan Tool Display - Active Test
    G00796493Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Touch "Qu" on CONSULT-II screen to increase "PURG VOL CONT/V" opening to 100%.
  5. Check vacuum hose for vacuum when revving engine up to 2,000 RPM.

    Vacuum should exist. 

OK or NG 

  1. OK: GO TO 16. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE .
  2. NG: GO TO 15. CHECK VACUUM HOSE .