Direct Fuel Injection
90-8M0050731 MAY 2011 Page 3B-53
Fuel Injectors
A fuel injector is an electromagnetic device. The precision mechanical components are controlled by a solenoid in the injector.
The solenoid is energized by a driver in the PCM that controls the on time of the solenoid by providing a ground. Six fuel injectors
are used to provide fuel from the fuel rail to the direct injectors. The fuel injectors are mounted in the fuel rails.
a - Cylinder head
b - Direct injector
c - Fuel/air rail
d - Air passage
e - Fuel passage
f - Fuel injector
Fuel Injector Resistance Test
Meter Test Leads
Meter Scale Reading (Ω)
Red Black
Injector pin Injector pin Ω 1.7–1.9 Ω
Fuel Rail Removal
!
WARNING
Performing service or maintenance without first disconnecting the battery can cause product damage, personal injury, or death
due to fire, explosion, electrical shock, or unexpected engine starting. Always disconnect the battery cables from the battery
before maintaining, servicing, installing, or removing engine or drive components.
!
CAUTION
Failure to release pressure from the fuel system will result in fuel spraying out, which can cause a fire or explosion. Allow the
engine to cool completely and release all fuel pressure before servicing any part of the fuel system. Always protect eyes and
skin from pressurized fuel and vapors.
1. Disconnect both battery leads from the battery.
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