Efi Engine Harness; Mcm 5.7L Efi Alpha With Vapor Separator Tank (Vst) - Mercury 305 CID Service Manual

EFI Engine Harness

MCM 5.7L EFI Alpha With Vapor Separator Tank (VST)

4
18
21
NOTE: All BLACK wires with a ground symbol are interconnected within the EFI system harness.
NOTE 1: As a mid year (96-1/2) model change, the EFI (Throttle Body Injection) models have the lanyard stop
connector removed from the wiring harness. The dual engine capability is relocated by routing the YEL wire to
the Data Link Connector (DLC).
1 - Vapor Separator Tank (VST)
2 - Throttle Body
3 - Distributor
4 - Coil
5 - Knock Sensor (KS) Module
6 - Data Link Connector (DLC)
7 - Manifold Absolute Pressure (MAP) Sensor
8 - Knock Sensor
9 - Idle Air Control (IAC)
10- Throttle Position (TP) Sensor
11- Engine Coolant Temperature Sensor (ECT)
Index
4F-16 - WIRING DIAGRAMS
3
8
10
1
11
22
12
9
2
6
7
5
14
12- Electronic Control Module (ECM)
13- Fuel Pump Relay
14- Ignition/System Relay
15- Fuel Pump Fuse
16- ECM/Ignition Feed/KS Module/Injectors Fuse
17- ECM/DLC/Battery Fuse
18- Harness Connector To Starting/Charging Harness
19- Harness Connector To Lanyard Stop Switch (Optional)
20- Harness Connector For Dual Engine Data Link Cable
21- Positive (+) Power Wire To Engine Circuit Breaker
22- Shift Cutout Switch
NOTE 1
19
16
17
20
15
13
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