Just a quick FAQ. If you can't find a DS2 harness, and don't want to shell out the $$ for one from Painless, you can use their wiring diagram (free, online) and buy your own connectors. If you are like me, I needed a connector so I could get my gauges to work after my Carburetor / DUI Ignition Conversion. In any case; here is the info:

E-core coil connector,
Standard S-539 or NAPA/Echlin ICC1

Factory Canister Coil Connector,
Standard S-583 or NAPA/Echlin ICA102

Module 2 Wire connector (power),
Standard S-629

Module 4 Wire Connector (Control)
Standard S-698

 

does the duraspark coil take a different wire connector than the tfi connector? and how bad is it to just run the tfi coil? with duraspark ll distributor.

 

I'll add to this. When hooking up DS2 into a 84 truck that had the TFI EEC4 carb. I found the 2 pin (red and white)connector of the 84's TFI harness is switched when you plugged in the DS2 plug!!

I found this out after rebuilding a wire harness for my 84 F250 300 I6. I plugged it in and verified connections, found those two are switched! Not sure if it was only this truck but something to look out for.

 

Yes, the red wire connects to the white wire, and the white wire connects to the red wire. I belive they have ALL been this way since the mid-70s when the system was introduced...

 

... the plug only fits that way, doesn't it?

I've heard about the wire colors reversed at the connector, but have never owned a mid '80's TFI truck, so IDK.

 

Yes, the plug fits only one way, to only one mating connector.

 

Interesting how Ford did that. Good to know as now I again will rewire that connector.... correctly. At least I found out before getting that harness installed!

 

You would know right away, since you would lose spark as soon as you let off the key.

 

ok here is what I found with that so called reversed set up

it IS the RIGHT way red to white , white to red they just did that for some reason or another .

if you try to reverse it (red to red etc.) it will run full 12 volts and start at the resistor (7-9 volts)

it will run white to red etc. and right

they only plug in (factory like) ONE way that is how it is supposed to be

so yeah reverse it back to reversed colors


I haven't figured out why they did it that way either , even the diagrams are that way

some with one pole on the starter solenoid mine and like 1984 and newer


and some with 2 small poles on it, 1983 and older

 

Just an FYI (coming from another thread)
It was asked for these #'s and it doesn't seem there is a better place to make them easy to find.

Coil connector, NAPA EC238 (ICA102 doesn't show up in their search)
2 (3) wire connector, NAPA EC72
4 wire connector, NAPA EC127

 

Here is the cheapest prices I found for module and ignition coil connectors

Module connectors
Ford Clips And Fasteners
They offer the coil connector too, but it is a ten pack

Coil horseshoe connector
Automotive Electrical Connector Pigtails, Terminals, Tools and More

With shipping costs it might be cheaper to buy everything from the second link or get the module connectors from Ford Clips And Fasteners and then get the horseshoe from Napa