Hey guys, ive got a 351 w in of a 83 f350. i have no ignition control module, and i have three plugs that seem like they would fit. went out and bought a module, and the plugs on the module are both male, however, the 2 prong ends on the engine side are both male as well. I chased wires and found that one of the plugs goes to instrument sensors and ignition coil. the other connects into the 4 prong plug. I went back to the store and tried to find a module with a female 2 prong end, but they dont even have one to order. so now im getting worried. is my wiring wacked? should i just cut the wires and splice them into the right prongs on the plug? Thanks!!!

 

Maybe this diagram from the Factory manual can help. Other folks here have diagrams that even show the wire colors.

 

I would NOT be cutting and splicing!

Can you post pictures of what you have?

 

No I can't, the computer I have is really slow. basically if you look at the diagram up there, we have the module, and the plug with 4 wires coming out of it is right. The other plug coming of the module does not match the harness on the engine. the other plug comes out of the motor side of the plug with 4 wires.

 

This is a diagram from a 70s Mustang, the basics are the same so see what it tells you. Google on Ford Duraspark Wiring Diagram and you'll find some help as to what is what.

 

Here is a crappy paint drawing of what i have. what is the plug labeled 3 for?

 

sorry that post wasnt clear. what is the post with 3 written on it for?

 

The red & white wires on the module are what give it power.

The coil will get full battery voltage in START and ~half that in RUN (the 1.3 ohm resistor knocks down the voltage to keep from burning out the coil in RUN, full battery voltage makes for easier starting).

 

If you have a round, 2-prong connector with green and black wires (I think that's what they are) leading to the coil, this is for an optional tach on the dashboard.

I still don't know what you're referring to when you talk about the post with a 3 on it?

 

i wrote numbers on the plugs in my drawing so i could kinda clear thigs up. We dropped this in between the frame rails of a 65 mustang, and since we already needed to make an account for the 54 ford panel were restoring we decided to ask here. so ill need to wire the red and white wires to my ignition switch and then everything should work? Is the withe negative and the red positive?

 

I would need to find the book and look it up, so I asked one of the other guys here to chime in. Hopefully he or somebody else who knows this stuff better will answer,.

 

If the colors of the wires are correct. #3 in the "painting", is for the optional Tachometer and is on the Distributor and Engine harness.

What you are looking for is a plug coming off the main wiring that leads out of the cab. The connectors are a part of the main wiring underdash harness that he is looking for. He does not have it pictured in his paintings.

Look for the plug with wires that are coming out of the firewall (of the 1980-1986 pickups). You should see the connector that goes to the module, and possibly the connector that goes to the optional tachometer connector you labeled, #3 if the truck has gauges. If the truck has idiot lights, connector #3 remains empty as there isn't a plug to connect to it.

Hopefully that makes sense...

you need to get a connector from a truck, or from the parts store, and wire it into your mustang... etc...

 

Aren't the red & white wire-colors reversed at the plugs? Red (on the module?) connects to white on the harness, and vice-versa? I seem to recall something about this and pertaining only to aftermarket modules, but I also for some reason think it also applies to factory wiring?

Another thing is... even though those round connectors look pretty much the same, aren't there tabs or channels or something that keep only the correct connectors connecting together?

 

Yes the plugs are indexed to only fit there mate.

You really only need to power the RED wire on the DS2 IGN module to make it run. The module grounds under the distributor, via the black wire.

Jim

 

So I get this connector and wire it to the back of the ignition switch so it receives power in the "run" postion?