Pontiac Fiero 1988 Service Manual page 540

DRIVEABILITY A N D E M I S S I O N S - F U E L INJECTION (TBI) 6E2-C2-9
[Tj
F U E L I N J E C T O R ( T O P
VIEW)
fTfPART
N U M B E R
[T1
B U I L D D A T E C O D E
QO
D A Y
M O N T H
[ T ] Y E A R
1 - 9 ( J A N - S E P T )
0 , N , D ( O C T , N O V , D E C )
8P0913-AS
1/15/87
Figure C2-11 - Fuel Injector Part Number Location
pTj
P R E S S U R E R E G U L A T O R
C O V E R A S S E M B L Y
(T]
C O V E R S C R E W & WASHER A S S E M B L Y
PH
S P R I N G S E A T
fTI
S P R I N G
PH
D I A P H R A G M A S S E M B L Y
fill
F U E L
M E T E R A S S E M B L Y
8P 0914-AS
1/15/87
Figure C 2 - 1 2 - T B I 700 Pressure Regulator
PRESSURE R E G U L A T O R A S S E M B L Y
R e p l a c e m e n t (Figure C 2 - 1 2 )
NOTICE:
To prevent leaks, the pressure regulator
diaphragm assembly must be replaced
whenever the cover is removed.
j ^ j R e m o v e or Disconnect
1. Four pressure regulator attaching screws, while
keeping pressure regulator compressed.
C A U T I O N :
The pressure regulator contains a
large s p r i n g u n d e r h e a v y
compression. Use care when
removing the screws to prevent
personal injury.
2. Pressure regulator cover assembly.
3. Pressure regulator spring.
4. Spring seat.
5. Pressure regulator diaphragm assembly.
m
Inspect
© Pressure regulator seat in fuel meter body cavity
for pitting, nicks, or irregularities. (Use
magnifying glass if necessary.) If any of above is
present, the whole fuel body casting must be
replaced.
|HHH|
Install or C o n n e c t
1 New pressure regulator diaphragm assembly,
making sure it is seated in groove in fuel meter
body.
2. Regulator spring seat and spring into cover
assembly.
3. Cover assembly over diaphram, while aligning
mounting holes.
NOTICE:
Use care while installing the pressure
regulator to prevent misalignment of
diaphragm and possible leaks.
4. Four screw assemblies that have been coated with
appropriate thread locking compound, while
maintaining pressure on regulator spring.
j ^ j T i g h t e n
• Attaching screw assemblies to 2.5 N-m
(22.0 lb. in.).
5. With engine "OFF" and ignition "ON," check for
fuel leaks.
F U E L M E T E R A S S E M B L Y
R e p l a c e m e n t (Figure C 2 - 1 3 )
R e m o v e or Disconnect
1. Electrical connector from fuel injector.
2. Grommet with wires from fuel meter assembly.
3. Inlet and outlet fuel line nuts, using back-up
wrench J-29698-A, or BT-8251-A.
4. Fuel line o-rings from nuts and discard.
5. TBI mounting hardware.
6. Two fuel meter body attaching screw and washer
assemblies.
7. Fuel meter assembly from throttle body assembly.
8. Fuel meter body to throttle body gasket and
discard.
Instail or C o n n e c t
1. New fuel meter body to throttle body gasket.
Match cut-out portions of gasket with openings in
throttle body assembly.
2. Fuel meter assembly.
3. Two fuel meter body attaching screw and washer
assemblies that have been coated with appropriate
locking compound.