SERVICE MANUAL NUMBER 24
WIRING DIAGRAMS
MEFI 3 350 Magnum MPI and All Black Scorpion Engines
NOTE: All BLACK wires with a ground symbol are interconnected within the EFI system har-
ness.
NOTE: Component position and orientation shown is arranged for visual clarity and ease
of circuit identification.
1
2
3
4
5
6
7
8
9
- Fuel Pump
- Distributor
- Coil
13 - Fuse (15 Amp) Fuel Pump,
Fuse (15 Amp) ECM/DLC/Battery,Fuse (10
Amp) ECM/Injector/Ignition/Knock Module
14
15
- Harness Connector To Starting/Charging Har-
ness
- Positive (+) Power Wire To Engine Circuit
Breaker
- Knock Sensor (KS) Module
- Data Link Connector (DLC)
- Manifold Absolute Pressure (MAP) Sensor
- Idle Air Control (IAC)
- Throttle Position (TP) Sensor
- Engine Coolant Temperature (ECT) Sensor
- Electronic Control Module (ECM)
- Fuel Pump Relay
16
17
18
19
20
- Shift Plate (Not used on Ski models)
- Oil Pressure (Audio Warning System)
- Gear Lube Bottle (Not used on Ski models)
- Fuel Pressure Switch
10
11
12
- Water Temperature Sender
- Ignition/System Relay
BLK = BLACK
BLU = BLUE
19
18
BRN = BROWN
GRY = GRAY
GRN = GREEN
ORN = ORANGE
PNK = PINK
PUR = PURPLE
RED = RED
TAN = TAN
17
6
20
WHT = WHITE
YEL = YELLOW
LIT = LIGHT
DRK = DARK
7
10
8
16
5
21
4
9
13
12
14
11
15
1
(–)
(+)
3
2
76064
Index
90-861327--1
OCTOBER 1999
Page 4E-17
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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