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 vacuum cut valve, see COMPONENT INSPECTION under DTC P1491: VACUUM CUT VALVE BY-PASS VALVE, for EVAP control system pressure sensor, 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.
and for intermittents, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
For diagnostic procedure, see Fig 1-Fig 3 .
Fig 1: Identifying Diagnostic Procedure For DTC P1448: EVAP Canister Vent Control Valve (Steps 1-3 Of 10)