1G-12 Fuel System:
Fuel Injector Removal and Installation
S5JB0A1706007
WARNING
!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service: ” in order to reduce the risk or fire
and personal injury.
Removal
1) Relieve fuel pressure according to “Fuel Pressure
Relief Procedure: ”.
2) Disconnect negative cable at battery.
3) Disconnect fuel injector couplers.
4) Disconnect fuel feed hose from fuel delivery pipe (1).
5) Disconnect fuel return hose from pressure regulator.
6) Disconnect vacuum hose from pressure regulator.
7) Remove fuel delivery pipe bolts (2).
8) Remove fuel injector(s) (3).
Installation
Reverse removal procedure for installation noting the
following.
• Replace injector O-ring (1) with new one using care
not to damage it.
• Check if cushion (2) is scored or damaged. If it is,
replace with new one.
• Apply O-ring oil to O-rings (1), and then install
injectors (3) into delivery pipe (4) and cylinder head.
Make sure that injectors rotate smoothly (6). If not,
probable cause is incorrect installation of O-ring.
Replace O-ring with new one.
“A”: Oil 99000–25320 (SUZUKI DI O RING
OIL(500CC))
• Tighten delivery pipe bolts (5) to specified torque and
make sure that injectors rotate smoothly.
Tightening torque
Fuel delivery pipe bolt (a): 25 N·m (2.5 kgf-m, 18.0
lb-ft)
[A]: For M16 engine model
[B]: For J20 engine model
I5JB0A170007-02
I5JB0A170008-02
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