MerCruiser 305 CID (5.0L) Service Manual page 381

MAINTENANCE
MEFI 1 and MEFI 2 MCM 350 Mag MPI Bravo 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 - Fuel Pump
2 - Distributor
3 - Coil
4 - Electronic Spark Control (KS) Module
5 - Data Link Connector (DLC)
6 - Manifold Absolute Pressure (MAP) Sensor
7 - Knock Sensor
8 - Idle Air Control (IAC)
9 - Throttle Position (TP) Sensor
10 - Engine Coolant Temperature (ECT) Sensor
3
8
9
17
18
Index
Page 4E-16
2
7
10
11 - Electronic Control Module (ECM)
12 - Fuel Pump Relay
13 - Ignition/System Relay
14 - Fuse (15 Amp) Fuel Pump
15 - Fuse (15 Amp) ECM/DLC/Battery
16 - Fuse (10 Amp) ECM/Injector/Ignition/Knock
Module
17 - Harness Connector To Starting/Charging Har-
ness
18 - Positive (+) Power Wire To Engine Circuit
Breaker
6
11
5
4
13
1
SERVICE MANUAL NUMBER
BLK = BLACK
BLU = BLUE
BRN = BROWN
GRY = GRAY
GRN = GREEN
ORN = ORANGE
PNK = PINK
PUR = PURPLE
RED = RED
TAN = TAN
WHT = WHITE
YEL = YELLOW
LIT = LIGHT
DRK = DARK
16
15
14
12
90-861327--1 OCTOBER 1999
75799