Idle Air Control (Iac) Valve - Mercury MerCruiser MCM 454 Mag MPI Service Manual

MULTI-PORT FUEL INJECTION DISASSEMBLY AND REASSEMBLY
INSTALLATION
1. Install IAT sensor in plenum. Tighten 2-1/2 turns maximum.
2. Install plenum, throttle body, throttle cable and flame arrestor as outlined in "Plenum".
3. Connect electrical connector to IAT sensor.

Idle Air Control (IAC) Valve

REMOVAL
1. Remove flame arrestor, throttle cable and throttle body as outlined in "Throttle Body".
2. Disconnect electrical connector from Idle Air Control (IAC) valve.
3. Remove IAC valve from throttle body.
Index
Page 5C-30
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a - Plenum
b - Intake Air Temperature (IAT) Sensor
Refer to "Precautions" in this section, BEFORE proceeding.
a - Throttle Body
b - Idle Air Control (IAC) Valve
c - O-Ring
d - Screws
a
b
NOTICE
d
b
c
SERVICE MANUAL NUMBER 23
72802
a
72800
90-861326--1 MARCH 1999