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How to Install an N14 Injector

N14 is the internal designator for the fourth generation of the Nissan Pulsar, which was manufactured from 1990 to 1995. It was also sold under several other names, including the Sentra in New Zealand and the Sunny in Europe. The N14 was available with a variety of four-cylinder engines, ranging in size from 1.3 liters to 2.0 liters. The procedure for installing a fuel injector is generally the same for all N14 vehicles.

Instructions

1

Remove the fuse for the fuel pump located in the fuse block of the engine compartment. Start the vehicle and allow it to stall. Crank the engine for at least three seconds to ensure the fuel system is empty. Replace the fuel pump fuse.

2

Disconnect the cover for the fuel injector with a socket wrench. Note the alignment of the injector terminals and lift the fuel injector straight out of the injector bore. Ensure that you do not bend the electrical terminal on the injector. Discard the old O-rings for the fuel injector.

3

Mount a new lower O-ring onto the fuel injector. Install the injector into the bore by pressing down firmly without damaging the electrical terminal. Rotate the injector within the bore to align its electrical terminal as noted in step two. Mount a new upper O-ring onto the fuel injector.

4

Remove the rubber plug from the cover of the fuel injector. Mount both of the O-rings for the fuel injector cover, and install the cover with a socket wrench. Ensure that the electrical terminal for the fuel injector connects properly with the terminal on the injector cover. Replace the rubber plug on the fuel injector cover.

5

Start the engine and check for leaks in the fuel system.