Diagnostic Procedure
WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For component inspection, see COMPONENT INSPECTION , for EVAP control system pressure sensor component inspection, see COMPONENT INSPECTION (2.5L) or COMPONENT INSPECTION (3.5L)
under DTC P0452: EVAP CONTROL SYSTEM PRESSURE SENSOR and for intermittents, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES
article.