Removal & Installation (3.5L)

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.

Remove engine cover if necessary.
Remove the air cleaner case lid and MAF sensor and air intake tube as an assembly. See MASS AIR FLOW SENSOR .
WARNING: To avoid the danger of being scalded, never drain the coolant when the engine is hot.

CAUTION: Use caution with any components that may be hot. Or any that could cause a injury, or a hazardous conditions.

CAUTION: Cover any engine openings to avoid the entry of any foreign materials.
Disconnect the electric throttle control actuator harness connector. See Fig 3.
CAUTION: Handle the electric throttle control actuator carefully to avoid any shock or damage to the electrical throttle control actuator.

NOTE: When disconnecting the electric throttle control actuator from the intake manifold collector pipe, loosen the four bolts in a diagonal pattern.
See illustration for removal and installation of electric throttle control actuator. See Fig 4.
Installation is the reverse order of removal. Tighten bolts to specification. See TORQUE SPECIFICATIONS .
After installation, it is necessary to re-calibrate the electric throttle control actuator:
- Perform the THROTTLE VALVE CLOSED POSITION LEARNING when ever the electric throttle control actuator is disconnected. See THROTTLE VALVE CLOSED POSITION LEARNING .
- Perform IDLE AIR VOLUME LEARNING when the electric throttle control actuator is replaced. See IDLE AIR VOLUME LEARNING .

Fig 1: Locating Electric Throttle Control Actuator Harness Connector (2.5L)

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

Fig 2: Exploded View Of Intake Manifold (2.5L)

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

Fig 3: Locating Electric Throttle Control Actuator Harness Connector (3.5L)

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

Fig 4: Exploded View Of Intake Manifold (3.5L)

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