Idle Air Control Valve; Fuel Pump Relay - Pontiac Fiero 1988 Service Manual

DRIVEABILITY AND EMISSIONS - FUEL INJECTION (PORT) 6E3-C2-13
Clean
© Gasket surface on intake manifold.
+«- Install or Connect
1. New flange gasket.
2. Throttle body assembly.
3. Retaining bolts.
Q
Tighten
4.
5.
6.
7.
8.
* Retaining bolts to 17 N-m (12.5 lb. ft).
Air inlet duct.
Throttle linkages.
Coolant lines.
TPS and IAC valve electrical connectors.
Negative battery cable. (Where Delco-Loc
t m
radio is installed on Pontiac cars, refer to NOTICE
in beginning of Section "9A" to reactivate radio.)
IDLE AIR CONTROL VALVE
Replacement (Figure C2-21)
4 H
2.
3.
Remove or Disconnect
Electrical connector from idle air control (IAC)
valve assembly.
IAC valve assembly.
Do not remove any thread locking compound
from threads.
IAC valve assembly gasket, and discard.
NOTICE."
If the IAC valve has been removed during
service, its operation may be tested
electrically with the IAC/ISC Motor Tester
(Available Tool No. J-37027, or
BT-8256K). However, if the valve pintle is
extended electrically, it must also be
retracted electrically. Under no
circumstances should the valve pintle be
tampered with by hand, screwed, or
pushed in, or pulled out, as damage could
occur.
Clean
• Gasket mounting surface of throttle body
assembly to ensure a good seal.
NOTICE:
The IAC valve assembly is an electrical
component, and must not be soaked in any
liquid cleaner or solvent, as damage may
result.
IDLE
AIR
CONTROL (IAC) VALVE
I A C V A L V E G A S K E T
f T ] THROTTLE BODY A S S E M B L Y
8 P 0 9 5 2 - A S
Figure C2-21 - SAC
Valve Removal
r n F U E L PUMP R E L A Y
PH ECM HARNESS - CONNECTOR T O F U E L PUMP
A/C C O N T R O L R E L A Y
4 S 0 5 5 9
.
6 E
Figure £2=22 - Fuel Pump Relay
|-»«-| Install or Connect
1. New IAC valve assembly gasket on IAC valve
assembly.
2. IAC valve assembly.
[||] Tighten
• IAC valve assembly to 18 N-m (13 lb. ft.)
with wrench on hex surface only.
NOTICE:
New IAC valves that have been preset at
the factory should be installed in the
throttle body in an "as is" condition,
without any adjustment.
3. Electrical connector at IAC valve assembly.