Pontiac Fiero 1988 Service Manual page 539

6E2-C2-8 DRIVEABILITY AND EMISSIONS - FUEL INJECTION (TBI)
1.
2.
3*
4.
NOTICE:
Do not use a higher strength locking
compound than recommended, since to do
so could make removing the screw
extremely difficult, or result in damaging
the screw head.
FUEL INJECTOR ASSEMBLY
Replacement (Figure C2-9)
The fuel injector is serviced only as a complete
assembly.
NOTICE:
Use care in removing injector, to prevent
damage to the electrical connector on top
of the injector, and nozzle. Also, because
the fuel injector is an electrical
component, it should not be immersed in
any type of liquid solvent or cleaner, as
damage may occur.
Remove or Disconnect
Electrical connector to fuel injector.
Injector retainer screw and retainer.
Using a fulcrum, place screwdriver blade under
ridge opposite connector end and carefully pry
injector out (see Figure C2-10).
Remove upper and lower o-rings from injector and
in fuel injector cavity and discard.
Inspect
Fuel injector filter for evidence of dirt and
contamination. If present, check for presence of
dirt in fuel lines and fuel tank.
91 Important
Be sure to replace the injector with an identical
part. Injectors from other models can fit in the Model
700 TBI, but are calibrated for different flow rates.
(See Figure C2-11 for part number location.)
Install or Connect
Lubricate new upper and lower o-rings with
automatic transmission fluid and place them on
injector. (Make sure upper o-ring is in groove and
lower one is flush up against filter.)
Injector assembly, pushing it straight into fuel
injector cavity.
[T"j Important
Be sure the electrical connector end on the
injector is facing in the general direction of the
cut-out in the fuel meter body for the wire
grommet.
t* 1
1.
2.
Pin
I N J E C T O R R E T A I N E R S C R E W A S S E M B L Y
HT|
INJECTOR
RETAINER
pTl F U E L M E T E R A S S E M B L Y
F U E L I N J E C T O R O-RING ( L O W E R )
F U E L I N J E C T O R O-RING (UPPER)
LTEC
INJECTOR A S S E M B L Y
8P 0911-AS
1/15/87
Figure C2-9 - Fuel Injector Parts
LTtJ
F U E L I N J E C T O R A S S E M B L Y
F U E L METER BODY
S C R E W D R I V E R B L A D E
F U L C R U M
8P 0912-AS
1/15/87
Figure C2-1Q - Removing TBI 700
Fuel injector
3. Injector retainer, using approriate thread locking
compound on retainer attaching screw.
4. Electrical connector to fuel injector.
P P J T i g h t e n
• Injector retainer attaching screw to 3.0 N-m
(27.01b. in.).
5. With engine "OFF" and ignition "ON," check for
fuel leaks.