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EVAP Canister: Inspection

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Check EVAP canister as per the following:

  1. Block port (B).
  2. Blow air into port (A) and check that it flows freely out of port (C).
  3. Release blocked port (B).
  4. Apply vacuum pressure to port (B) and check that vacuum pressure exists at the ports (A) and (C).
  5. Block port (A) and (B).
  6. Apply pressure to port (C) and check that there is no leakage.
    Fig 1: Identifying EVAP Canister Ports
    G07024977Courtesy of NISSAN NORTH AMERICA, INC.