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 MOTOR CO., U.S.A.