Throttle Body Injection Components
THROTTLE BODY UNIT EXPLODED VIEW
FUEL PUMP ELECTRICAL COMPONENTS
When the ignition switch is turned to the RUN posi-
tion, the ECM will turn ON the fuel pump relay for two
seconds.
d
When the ignition switch is turned to the crank posi-
tion, the ECM turns the fuel pump relay ON causing
the fuel pump to start.
e
If the ECM does not receive ignition reference pulses
(engine cranking or running), it shuts Off the fuel
pump relay, causing the fuel pump to stop.
g
THROTTLE BODY UNIT
The throttle body unit consists of three assemblies.
•
•
•
Fuel meter cover and fuel damper
f
Fuel meter body and fuel injectors
Throttle Body
-Two Throttle Valves To Control Air Flow
Into The Engine
-Idle Air Control (IAC) Valve
-Throttle Position (Tp) Sensor
a
c
b
73766
a - Throttle Body
b - Idle Air Control (IAC) Valve
c - Throttle Position (TP) Sensor
d - Fuel Meter Cover
e - Fuel Damper
f - Fuel Meter Body
g - Fuel Injector (2)
Index
5C-24 - ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY)
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
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