Pontiac Fiero 1988 Service Manual page 541

6 E 2 - C 2 - 1 0 B R i V E A B I L I T Y AND EMISSIONS - FUEL INJECTION (TBI)
m
LH
LH
LH
10
F U E L I N J E C T O R
I N J E C T O R RETAINER
F U E L M E T E R B O D Y A T T A C H I N G
S C R E W & W A S H E R A S S E M B L Y
F U E L M E T E R A S S E M B L Y
F U E L M E T E R B O D Y T O T H R O T T L E B O D Y G A S K E T
F U E L O U T L E T N U T
F U E L L I N E O U T L E T N U T O - R I N G
F U E L N U T S E A L
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
A I R F I L T E R G A S K E T * P « 9 1 5 A S
1/15/87
Figure C2-13 - Fuel Meter Assembly
T i g h t e n
• Attaching screws to 6.0 N-m (53 lb. in.).
4. Throttle body injection unit mounting hardware.
^ T i g h t e n
• Mounting hardware to 17N-m (121b. ft.).
5. New o-rings on fuel line nuts.
6. Fuel line inlet and outlet nuts by hand.
| | \ ] T i g h t e n
• Inlet and outlet nuts to 27 N-m (20 lb. ft.).
(Use back-up wrench J-29698-A, or
BT-8251-A to keep TBI nuts from turning.)
7. Grommet with wires to fuel meter assembly.
8= Electrical connector to fuel injector, making sure
it is fully seated and latched.
9. With engine "OFF" and ignition "ON," check for
leaks around fuel line nuts.
T H R O T T L E POSITION S E N S O R (TPS)
R e p l a c e m e n t (Figure C 2 - 1 4 )
R e m o v e or D i s c o n n e c t
1. Electrical connector from TPS.
2. Screw assemblies and TPS.
[T]
F U E L HI ETER A S S E M B L Y
T H R O T T L E B O D Y A S S E M B L Y
T H R O T T L E POSITION S E N S O R
PS"]
T P S ATTACHING SCREW &
WASHER A S S E M B L Y
8P 0916-AS
1/15/87
F i g u r e C2-14
- T h r o t t l e P o s i t i o n S e n s o r (TP S)
N O T I C E :
The throttle position sensor is an electrical
component, and should not be immersed in
any type of liquid solvent or cleaner, as
damage may result.
Install or C o n n e c t
With throttle valve in normally closed position,
install TPS on throttle shaft and rotate counter-
clockwise to align mounting holes.
2. Attaching screw and washer assemblies.
Lan
1.
T i g h t e n
• Screw assemblies to 2.0 N-m (18.0 lb. in.)
3. Electrical connector to TPS.
4. Check for TPS output as follows:
Connect ALDL scanner to read TPS output
voltage.
With ignition "ON" and engine stopped, TPS
voltage should be less than 1.25 volts. If more
than 1.25 volts, replace TPS.
IDLE AIR C O N T R O L (IAC) V A L V E
R e p l a c e m e n t (Figure C 2 - 1 5 )
NOTICE:
The IAC valve is an electrical component
and must not be soaked in any liquid
cleaner or solvent. Otherwise damage
could result.
Important
On TBI Model 700, the IAC valve is flange-
mounted, with a dual taper, 10 mm diameter pintle.
If replacement is necessary, only an IAC valve
identified with the correct part number (having the
appropriate pintle shape and diameter) should be
used.