FixVault

2. Check Connector

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect EVAP control system pressure sensor harness connector.
  2. Check sensor harness connector for water.
    1. Water should not exist. 

OK or NG 

OK : GO TO 3.

NG : Repair or replace harness connector.