Couple pics of the headlight harness:

 

Anybody?

 

The main harness for 94 Mustangs will cover the following: A/C, TPS, IAC, ECT for processor, ECT for gauge cluster, (8) injectors, Ignition coil, distributor, connector plug to O2 sensors, MAF, Spout connector, TFI module, CCRM, Fan, overflow bottle, and maybe 1 or 2 more itmes. THe lights are not a part of the main harness but it may have a plug/connector underneath the passenger side fender.

I hope this helps
Michael Plummer

 

I'll get back out and look at it in the morning. I could have sworn that the overflow/CCRM and TFI were all part of the loom where the headlight connector was.

 

Alright, so I still can't get this figured out. First off, what the hell is this? Its underneath the passenger fender:



Here is everything for the MAF, IAT, CCRM, etc.


Here you can see the opening to the engine bay, where I pulled all the connections through. You can see the headlight harness, and this is at least wrapped in the same loom as the two thick collections on the left of the picture.


Here's the connection:


Driver's side, same thing. Headlight wired (or at least wrapped in the same loom) as the engine harness. This leads to the fuse box. Other end goes over top of the radiator and to the other side.





So. I'm lost. I want to delete the engine harness and run a standalone system. I am not sure if I should cut into the loom. I want to keep the headlights, ABS, etc. Also move the fuse box into the fender well (this should be easy).

Any thoughts?

 

I run a BS3 in my car and it comes with its own engine harness, I sold the stock one.

I went abit overboard, went thru every harness getting rid of what I didn't need. I also removed a lot from the fender/under dash harnesses. I still use the stock harness for the headlights, power mirrors/doorlocks.
Almost everything else I ditched.

I couldn't count the hours I have into this, along with hiding everything. Was a major PITA but I couldn't stand the way it was.

Good luck

-CE

 

So are the headlights just wrapped in the same loom as the main harness? Should I cut into it? I've already got the fuel injector harness out of the car, just can't seem to figure out how to separate everything

 

Yes its the same style loom. I used a razor blade and got into it.

I re-wrapped the headlight harness in my own loom after I went thru the harness removing what I didn't need.

 

Ok. Just wanted to make sure that's what I needed to do before I cut into and hacked up everything

 

The only way to get rid of what you dont need to is to dive into it head first. Cut all the crappy ford loom and tape off and go through it and you'll see how its laid out. Once you're done and give the harness a fresh wrap of electrical tape it'll be so much nicer and neater.

 

Cut all the crappy ford loom and tape off and go through it and you'll see how its laid out. Once you're done and give the harness a fresh wrap of electrical tape it'll be so much nicer and neater.

The Ford loom is fine, it's just dirty from all those years of service. If you can find the same wire loom that the OEM uses, then I would use that. Don't use electrical tape, it leaves a sticky mess behind when you remove it. Use what the professionals use harness wrap, and use electrical tape to secure it at the termination end. Sorry I don't have a link but Pro-M Racing sells it.

 

You will not be able to reuse any of the ford loom. It will come off in pieces, falling apart, stuck to the sticky as hell fabric tape, etc.

I am with everyone else so far. Dive in and take copious notes. I use a digital camera along with my pen and paper.

I am not a fan of cutting out the wires you don't need. Learn the connectors and just unpin them. It is too easy.

Wear disposable gloves, change them out often cause they will tear doing this kind of work. That sticky crap doesn't come off your hands very easy.

Having done the same as 4Jenna, I ditched the ABS, airbags, emissions control stuff and cruise control. You will be surprised how much comes out when you do that.

Headlights, abs, air bags, horn, starter circuit, alternator harness, A/C harness, body harness going back to the driver's side fenderwell, cruise control are all part of what I call the 'Main Harness' and connected right into the underhood fuse box.

The ECU harness is what you pulled out first after unhooking the EFI harness.

 

Headlights, abs, air bags, horn, starter circuit, alternator harness, A/C harness, body harness going back to the driver's side fenderwell, cruise control are all part of what I call the 'Main Harness' and connected right into the underhood fuse box.

This is what I want to keep. Can anyone tell me what the canisters are under the passenger fender are for? Is that the charcoal canister crap? It has 3-4 brightly colored plastic tubes coming out of it (I don't think they're wires)

 

Also I used the nice braided nylon loom, got it thru Summit

 

Need to clarify, I was not suggesting to re-use the stk. OEM wire loom, was just pointing out that it's only looks a mess because of all the years of service.

Checkout this link for an assortment of wire related stuff: WireCare.com :: Your Cable Management SuperStore!

 

Thanks for the link. I've been looking for a place like that to do a new loom.

Can anybody tell me what the canisters are for?

 

Cable Management - Cord Covers and Cable Cover - Cable Ties and More

is another good place to get the expandable nylon loom

 

Which would look best on the wires, braided sleeving or the hard plastic wire loom?

 

I don't have smog equipment or cats, so I can delete the TAD/TAB solenoids and the vacuum storage correct? I'd rather not reek of gasoline after driving the car so I'll probably keep the charcoal canister.

 

That is correct.

 

Alright I have them all removed for now. I will post a picture here shortly to see what to keep.

Moving on to the passenger side. I have the alternator harness out as well as the heavy battery connections. I need to remove the fuse box to relocate it inside the fender. Where is the connection to unplug the main harness from it? It connects underneath but all I see is wires. I can't remove the bolts because the harness is in the way

 

Here are the canisters. Which one do I need to keep?

 

You need the one in the middle as that's the purge solenoid for the charcoal canister.

 

How is the fuse box unbolted in order to move it? I unbolted the one easy bolt to get, but there is one that is behind where all of the wires feed into it from the bottom. There is no way to get a socket in there

 

It has to be pulled off the metal bracket first. Then the bracket can be removed.

 

Is it bolted to the bracket?

 

No its not

 

I think Ford super glued these connectors together in front of the ECU. How the hell did you guys get them apart? I've gotten 2 out of the 3:





I've tried every tool and pair of grips I could think of. And yes I pushed the tabs down first. These things are not coming apart

 

I think Ford super glued these connectors together in front of the ECU. How the hell did you guys get them apart? I've gotten 2 out of the 3:





I've tried every tool and pair of grips I could think of. And yes I pushed the tabs down first. These things are not coming apart

There is a tool for that, a must have if you don't want to break the tabs off. ttp://www.etoolpros.com/automotive-tools/OTC-4460.html

 

Yup those are a joy, like 99% of everything when working on a car lol.

Keep at it, and if you get it apart w/o breaking the tabs you've accomplished something lol.

-CE

 

Most the the connections have come apart no problem. These are a complete bitch. Plus there's really no room to really grab the other side to pull the two apart

 

small screwdrivers to pry carefully with

 

Alright finally got those connectors apart. I've unbolted the 10mm bolt that holds the 60 pin to the ECU. The harnesses are all free, now how the hell do you get them up and through everything? Do I need to cut out the grommet that fits in the firewall?