See above in red...

 

ok thanks for the heads up interesting

 

85' F150 I6: Why can't I use my stock ignition harness, when I convert to DS II (just change distributor/box)?

 

the computer harness has 10-30 extra wires and NONE of them fit the Duraspark Module here is the 1985 truck wiring diagram

the ECM (engine control module ) and the ignition control module (bolted to the distributor) are way too different connections

the duraspark ii wiring harness is very simple to connect to the existing truck (underdash wiring to under hood plugs you keep)

 

do you have a wiring diagram for your truck ?

 

as you can see the EMC has many more wires and connections that never could be hooked up with the Dura spark module or the distributor

here is the duraspark ii set up

 

Makes sense. That's the best DS II diagram I've seen yet (simple). Now, 2 or 3 plug Duraspark Module!? Who makes a DS II harness that will work...I can't find a used one anywhere.

 

That makes my HEI conversion look simple. I know the DUI distributor was more expensive but it made things easy.

One wire hookup to distributor and done. (I actually put in a relay to make sure I had full voltage at the distributor). Easy Easy

I had planned on the DSII conversion but couldn't locate an affordable harness and didn't feel like making one, although the connectors are available.

DUI Distributor, Live Wire plug wires, Carter YFA Carburetor. Converted EVAP and EGR to vacuum control and pulled the computer, all the solenoids, and harness. It runs like a dream with no more misses and gobs of power and torque. Much less cluttered under the hood as well, although I do need to clean up the plug wire routing a bit

 

I can get my hands on at least 5 duraspark ii harnesses here locally

$14 a piece

a few v8s and a couple I6es

I wish that I knew that before I got mine on ebay ( for $30 including used blue grommet module )


all in all my conversion (not including carb.) was about 120 bucks with new distributor and module

but there is a good shape used distributor here locally in a ford 300 i6

 

#1. 2 plug ? blue grommet module

#2. cheapest NEW harness is a 130 buck harness from painless

but you can make one using the pig tails at most parts houses

or I can get as mentioned a least 5 of the things , I should get some and test them and have them as spares or something

I got kinda lucky on the only used harness for 30 bucks plus it came with a good used module on ebay

 

I cant find any I6 DS II Harnesses here (PickNPull or salvage yards). Want to pull and sell me one on ebay

 

One wire, one relay, an alternate source of full current battery voltage, a few Ford specific harness connectors...

Some people don't have the knowledge, time, resources to get it together.
(believe me, I'm all for simplicity and and robustness! )

I like the idea.
But I also like the idea that if my ignition takes a dump in the middle of godforsaken nowhere I could get home on Sunday with a cheap $35 Autozone module that plugs right in.

 

Didn't have to use any Ford specific connectors as I just isolated the one from the old harness. This was actually a very simple conversion. What took the time was figuring out the emissions conversions and chasing carburetor issues and my own dodgy wiring the first time around (I tried to NOT use the relay - bad idea that fouled my plugs really badly. - I finally found a perfect use for my spark plug cleaner..)

I suppose if mine decides to go south in the middle of nowhere, the chances of an Autozone or such being in the area are pretty much nil also (hence the middle of nowhere)

LOL

 

I'm sorry.
I guess I didn't read through your post listing all the various pigtails thoroughly enough.
I thought you had sourced them for your conversion.

I DO appreciate the thought and documentation that went into your thread(s).
And can completely understand the reasoning behind the 'all in one' solution.

There's not a lot of 'nowhere' here in the NYC metro.
In fact, I'd imagine there's not a lot of nowhere from D.C. clear to Boston. (except maybe the N.J. pine barrens)

I just keep a spare box under my seat.

 

yeah apparently there are very few people around here (where I live )
care about nothing
that once a vehicle stops working or they havn't the time or ....

by by scrap it goes and they get a newish one (chebbie people )


and out there chebbies are in abundance and fords about 30 or so trucks oldies but goodies

very few ford people here and they look at me like

"HAHA he under the hood again its a ford " and I go I'm picking Priuses out of the dang thing I run over them all the time (that an chevy cavilers / sunfires ) man those are dime a dozen