7.4L
/ 7.4LX / 454 / 502 MULTI-PORT MAGNUM ENGINE DIAGRAM MODELS WITH COOL FUEL
SYSTEM
3
7
4
2
8
12
9
10
6
17
11
5
18
16
14
15
13
19
1
75146
NOTE: All BLACK wires with a ground symbol are interconnected within the EFI system harness.
1
2
3
4
5
6
7
8
9
- Fuel Pump
- Throttle Body
- Distributor
- Coil
- Electronic Spark Control (KS) Module
- Data Link Connector (DLC)
- Manifold Absolute Pressure (MAP) Sensor
- Knock Sensor
11- Engine Coolant Temperature (ECT) Sensor
12- Electronic Control Module (ECM)
13- Fuel Pump Relay
14- Ignition/System Relay
15- Fuse (15 Amp) Fuel Pump
16- Fuse (15 Amp) ECM/DLC/Battery
17- Fuse (10 Amp) ECM/Injector/Ignition/Knock Module
18- Harness Connector To Starting/Charging Harness
19- Positive (+) Power Wire To Engine Circuit Breaker
- Idle Air Control (IAC)
10-
Throttle Position (TP) Sensor
Index
90-823224--2 796
WIRING DIAGRAMS - 4F-9
| 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.
Thank you