Intake Manifold: Removal

Release fuel pressure. See FUEL PRESSURE RELEASE under REMOVAL & INSTALLATION. Disconnect electrical connectors at fuel injectors and vacuum hose at pressure regulator. Disconnect necessary fuel hoses.
Remove fuel rail retaining bolts in proper sequence. See Fig 1 . Remove fuel rail with fuel injectors and insulators. See Fig 2 .

Fig 1: Fuel Rail Bolt Removal & Installation Sequence
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Exploded View of Intake Manifold & Components
Courtesy of NISSAN MOTOR CO., U.S.A.
Disconnect necessary electrical connections, hoses and control cables. Remove support braces from intake manifold. Remove intake manifold retaining bolts in proper sequence. See Fig 3 . Remove intake manifold and gasket.
Remove intake manifold collector-to-intake manifold bolts/nuts in proper sequence if intake manifold collector is to be separated from intake manifold. See Fig 3 . Separate intake manifold collector and gasket from intake manifold.

Fig 3: Intake Manifold & Intake Manifold Collector Bolt/Nut Removal & Installation Sequence

Courtesy of NISSAN MOTOR CO., U.S.A.