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

MULTI-PORT FUEL INJECTION DISASSEMBLY AND REASSEMBLY
CLEANING AND INSPECTION
1. Clean and inspect surfaces of IAT sensor with a dry cloth.
2. Inspect IAT sensor for signs of wear and/or damage.
INSTALLATION
1. Install the IAT sensor in the plenum. TIGHTEN 2-1/2 TURNS MAXIMUM.
2. Connect harness connector to the IAT sensor.

Idle Air Control (IAC) Valve

REMOVAL
1. Remove the flame arrestor, throttle cable and throttle body.
2. Remove the IAC valve from the throttle body.
Index
Page 5C-50
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a - Intake Air Temperature IAT Sensor
Refer to "Precautions" in this section, BEFORE proceeding.
a - Screw (2)
b - Idle Air Control (IAC) Valve
c - Throttle Body
a
NOTICE
b
a
c
SERVICE MANUAL NUMBER 23
75658
75657
90-861326--1 MARCH 1999