Nissan Maxima 1993-1998 Repair Guide

Fuel Injectors

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4 and 5


CAUTION
Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion.

  1. Disconnect the negative battery cable, for safety purposes.
  2.  
  3. Remove the fuel rail.
  4.  
  5. To remove the fuel injector from the fuel rail, remove the fuel injector retainer screws and press the fuel injector out from the fuel rail. Discard the O-rings.
  6.  



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Fig. Fig. 1: Exploded view of the fuel injector components



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Fig. Fig. 2: To remove the injector from the rail, remove the retainer screws and the bracket ...



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Fig. Fig. 3: ... then pull the injector from the fuel rail



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Fig. Fig. 4: Use a small pick to remove the old O-ring from the injector



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Fig. Fig. 5: The large O-ring should also be replaced

To install:
  1. Install new O-rings onto the fuel injector.
  2.  
  3. Wet the new O-rings with a thin coating of oil and press the injector into the fuel rail.
  4.  
  5. Install the bolts and tighten the fuel injector retainer.
  6.  
  7. Install the fuel rail.
  8.  
  9. Connect the negative battery cable.
  10.  
  11. Start the engine and check for leaks.
  12.  

Keep in mind that the engine may take longer to start, since the fuel system has to pressurize. Be sure the battery is in good condition.

 
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