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Mercury MerCruiser MCM 502 Mag MPI

Mercury MerCruiser MCM 502 Mag MPI
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MULTI-PORT FUEL INJECTION DISASSEMBLY AND REASSEMBLY SERVICE MANUAL NUMBER 23
Page 5C-50 90-861326--1 MARCH 1999
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.
75658
a
a-Intake Air Temperature IAT Sensor
2. Connect harness connector to the IAT sensor.
Idle Air Control (IAC) Valve
NOTICE
Refer to “Precautions” in this section, BEFORE proceeding.
REMOVAL
1. Remove the flame arrestor, throttle cable and throttle body.
2. Remove the IAC valve from the throttle body.
75657
c
a
b
a-Screw (2)
b-Idle Air Control (IAC) Valve
c-Throttle Body
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