Nissan GT-R (R35) · Service Manual ENGINE

FUEL INJECTOR

VR38

Description


The fuel injector is a small, precise solenoid valve. When the ECM supplies a ground to the fuel injector circuit, the coil in the fuel injector is energized. The energized coil pulls the ball valve back and allows fuel to flow through the fuel injector into the intake manifold. The amount of fuel injected depends upon the injection pulse duration. Pulse duration is the length of time the fuel injector remains open. The ECM controls the injection pulse duration based on engine fuel needs.

SEF375Z.JPG

Component Function Check


 
 1.INSPECTION START
 
 2.CHECK FUEL INJECTOR FUNCTION

Diagnosis Procedure


 
 1.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
 
 2.DETECT MALFUNCTIONING PART
 
 3.CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
 
 4.DETECT MALFUNCTIONING PART
 
 5.CHECK FUEL INJECTOR
 
 6.CHECK INTERMITTENT INCIDENT

Component Inspection


 
 1.CHECK FUEL INJECTOR