FixVault

4. Check Vacuum Hose

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Stop engine.
  2. Check hoses and tubes between intake manifold and power valve actuator for crack, clogging, improper connection or disconnection. Refer to "VACUUM HOSE DRAWING ".

OK or NG 

  1. OK : GO TO 5.
  2. NG : Repair hoses or tubes.