Removal and Installation: Removal

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Put a "CAUTION FLAMMABLE" sign in the workshop.
Be sure to work in a well ventilated area and furnish workshop with a CO₂ fire extinguisher.
Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.
To avoid the danger of being scalded, never drain engine coolant when engine is hot.

Remove engine cover and engine room cover (RH and LH). Refer to "EXPLODED VIEW ".
Release fuel pressure. Refer to "INSPECTION ".
Remove the fuel feed hose (2) on the fuel feed damper side with quick connector release (commercial service tool: J-45488) as per the followings steps.

Fig 1: Locating Quick Connector Cap And Fuel Feed Hose
Courtesy of NISSAN NORTH AMERICA, INC.

CAUTION: Use the quick connector release for removing the fuel feed hose on the centralized under-floor piping side as well as the fuel feed damper side although the shape of the quick connector is different.
1. Remove quick connector cap from quick connector connection.
2. With the sleeve side (B) of quick connector release (A) facing to quick connector (D), install quick connector release onto fuel feed hose.
  
  Fig 2: Installing Quick Connector Release Onto Fuel Feed Hose
  Courtesy of NISSAN NORTH AMERICA, INC.
3. Insert quick connector release into quick connector until sleeve contacts and goes no further. Hold quick connector release on that position.
  CAUTION: Inserting quick connector release hard will not disconnect quick connector. Hold quick connector release where it contacts and goes no further.
4. Pull out quick connector straight from fuel feed damper.
  CAUTION:
  - Pull quick connector holding position (E) as shown in the figure below.
  - Never pull with lateral force applied. O-ring inside quick connector may be damaged.
  - Prepare container and cloth beforehand as fuel will leak out.
  - Avoid fire and sparks.
  - Keep parts away from heat source. Especially, be careful when welding is performed around them.
  - Never expose parts to battery electrolyte or other acids.
  - Never bend or twist connection between quick connector and fuel feed hose during installation/removal.
  - To keep the connecting portion clean and to avoid damage and foreign materials, cover them completely with plastic bags (A) or something similar.
  Fig 3: Securing Quick Connector Using Plastic Bags
  Courtesy of NISSAN NORTH AMERICA, INC.
Remove air duct. Refer to "EXPLODED VIEW ".
Remove electric throttle control actuator. Refer to "EXPLODED VIEW ".
Remove fuel hose (center).
- The procedure for removing the quick connector is the same as for removing the fuel feed damper.
  CAUTION: Disconnect quick connector by using quick connector release (commercial service tool: J-45488), not by picking out retainer tabs.
Remove fuel tube and fuel injector assembly.
- Loosen mounting bolts (b) first. Then loosen mounting bolts (a) shown in the figure below.
  
  Fig 4: Fuel Tube And Fuel Injector Assembly Mounting Bolts Loosening Sequence
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  CAUTION: Never tilt it, or remaining fuel in pipes may flow out from pipes.
Remove fuel injector (1) from fuel tube (3) as per the following:

Fig 5: Locating Fuel Injector, Fuel Tube, Protrusion And Clip Mounting Groove
Courtesy of NISSAN NORTH AMERICA, INC.
1. Open and remove clip (2).
2. Remove fuel injector from fuel tube by pulling straight.
  CAUTION:
  - Be careful with remaining fuel that may go out from fuel tube.
  - Be careful not to damage injector nozzles during removal.
  - Never bump or drop fuel injector.
  - Never disassemble fuel injector.
Disconnect sub harness connector from fuel injectors.
Remove fuel damper and fuel feed damper, if necessary.