90-823225--1 10965E-166 - ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY)
6. Remove screws and fuel pressure regulator.
75068
c
a
b
d
a - Fuel Rail
b - Fuel Pressure Regulator
c - Adapter Fitting
d - Adapter Block
Fuel Injectors
NOTICE
Refer to “Service Precautions,” in “Repair
Procedures,” BEFORE proceeding.
REMOVAL
NOTE: Use care in removing fuel injectors to prevent
damage to the electrical connector and nozzle.
IMPORTANT: The fuel injector is an electrical
component. DO NOT soak in any liquid cleaner or
solvent, as damage may result.
1. Remove flame arrestor, throttle body, plenum
and fuel rail as outlined in this section.
2. Remove fuel injectors from fuel rail and intake
manifold.
CLEANING AND INSPECTION
Inspect fuel injectors for damage; replace if neces-
sary.
INSTALLATION
IMPORTANT: When replacing injectors, be cer-
tain to replace with the identical part and part
number. Other injectors may have the same ap-
pearance, yet have a different part number and be
calibrated for a different flow rate, and if installed,
would cause performance difficulty or damage to
the ECM.
1. Install new O-rings on fuel injectors. Lubricate O-
rings using a water soap solution.
72799
b
a
a - Fuel Injector
b - O-Ring
2. Install fuel injectors as outlined in “Fuel Rail” and
“Intake Manifold.”
3. Install fuel rail, plenum, throttle body and flame
arrestor as outlined in this section.
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