SERVICE MANUAL NUMBER 23
WIRING DIAGRAMS
MEFI 3 MCM (Sterndrive) 7.4L MPI Bravo and MIE (Inboard) 7.4L Inboard
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.
4
2
17
6
19
3
7
8
18
11
9
5
7
10
14
13
15
12
16
1
75993
1
2
3
4
5
6
7
8
9
- Fuel Pump
- Distributor
- Coil
- Gear Lube Monitor Bottle (Not Used On MIE)
- Data Link Connector (DLC)
- Manifold Absolute Pressure (MAP) Sensor
- Knock Sensor
13 - Ignition/System Relay
14 - Fuse (15 Amp) Fuel Pump
Fuse (15 Amp) ECM / DLC / Battery
Fuse (10 Amp) ECM / Injector / Ignition /
Knock Module
15
- Harness Connector To Starting/Charging
Harness
16
- Positive (+) Power Wire To Engine Circuit
Breaker
- Idle Air Control (IAC)
- Throttle Position (TP) Sensor
- Engine Coolant Temperature (ECT) Sensor
- Electronic Control Module (ECM)
- Fuel Pump Relay
17
18
19
- OIl Pressure - Audio Warning Switch
- Load Anticipation Circuit (Not Used On MCM)
- Manifold Air Temperature (MAT) Sensor
10
11
12
Index
90-861326--1
MARCH 1999
Page 4E-17
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 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 GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...