Evaporative Emission System: Inspection

CHECK EVAP CANISTER
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.
  : INSPECTION END
  
  Fig 1: Identifying EVAP Canister Ports
  Courtesy of NISSAN NORTH AMERICA, INC.