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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1159 (Engine Control System - DTCS P0171 To P0453) >> DTC P0448 EVAP Canister Vent Control Valve >> DTC Confirmation Procedure >> With Consult-II

With Consult-II

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch ON and wait at least 5 seconds.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-II.
    Fig 1: Identifying CONSULT-II - DATA MONITOR
    G04900036Courtesy of NISSAN NORTH AMERICA, INC.
  4. Start engine and let it idle for at least 1 minute.
  5. Repeat next procedures 3 times.
    1. Increase the engine speed up to 3, 000 to 3, 500 rpm and keep it for 2 minutes and 50 seconds to 3 minutes.

      Never exceed 3 minutes. 

    2. Fully released accelerator pedal and keep engine idle for about 5 seconds.
  6. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".

    If 1st trip DTC is not detected, go to the next step.

  7. Repeat next procedure 20 times.
    1. Quickly increase the engine speed up to 4, 000 to 4, 500 rpm or more and keep it for 25 to 30 seconds.
    2. Fully released accelerator pedal and keep engine idle for at least 35 seconds.
      Fig 2: Identifying Blinking Pattern Of Engine Speed
      G04875245Courtesy of NISSAN NORTH AMERICA, INC.
  8. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".