EVAP Canister

Check EVAP canister as follows:

1. Block port (B  ).
2. Blow air into port (A  ) and confirm that it flows freely out of port (C  ).
3. Release blocked port (B  ).
4. Apply vacuum pressure to port (B  ) and confirm 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

Courtesy of NISSAN NORTH AMERICA, INC.