WIRING DIAGRAMS
SERVICE MANUAL NUMBER 23
MEFI 3 MCM (Sterndrive) 454 / 502 Mag MPI and MIE (Inboard) 454 Mag MPI
Horizon and 8.2L MPI Models
NOTE: All BLACK wires with a ground symbol are interconnected within the EFI system
harness.
NOTE: Component position and orientation shown is arranged for visual clarity and ease
of circuit identification.
19
2
6
16
10
3
7
17
8
5
18
4
9
13
12
1
14
11
15
76001
1
2
3
4
5
6
7
8
9
- Fuel Pump
- Distributor
- Coil
- 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
13 - Fuses (15 Amp) Fuel Pump, (15 Amp) ECM /
DLC / Battery, (10 Amp) ECM / Injector /
Ignition / Knock Module
14
- Harness Connector To Starting/Charging
Harness
15
- Positive (+) Power Wire To Engine Circuit
Breaker
16
17
18
19
- Oil Pressure (Audio Warning System)
- Load Anticipation Circuit
- Water Temperature Sender
- Gear Lube Bottle (Not used on Inboard
models)
10
11
12
- Ignition/System Relay
Index
Page 4E-16
90-861326--1 MARCH 1999
| 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...