ECU, Wiring, Sensors
User avatar
By DJSilkie
#68924 Ok, I've completely given up on my wire tuck now. I screwed my car up so bad I don't even know what to do.

I got a quote on how much it would be to fix it from my mechanic, but he said I've torn into the wiring too much and it would be a one-in-a-million chance of getting it running again purely by splicing the wires back together.

Pretty much my only hope now is to completely replace the main engine wiring harness all together. Well whatever, as long as I can get my baby purring again.

So I looked on eBay but only got about 4 results and they are all for 5 speeds. Which I don't have.

My next option, I thought, was to try a get a "new" one from Honda. Has anyone bought anything directly from a manufacturer? How do I do it? And if I do, will it be uber expensive?

I guess my final hope other than Honda would be if one of you guys sold it to me for 100 bucks. Cuz that's what I got.
User avatar
By Classiccarsrule85
#68930 well I can take a good look up at my local junk yard and see if i cant find a harness what is it auto Z6 engine or 1.5 because i know there are alot of 1.5 auto harnesses up there. just let me know and ill get back to you asap if they do or not
User avatar
By teal_dx
#68933 I had an auto D15b7 and a manual D16z6 harness. The only difference that I can think of on the two was the wiring for vtec. I can't recall there being any difference between an auto and manual engine harness for a D16z6. The only exception might be the reverse light wiring on the manual tranny, but your auto shifter assembly controls that.
User avatar
By DJSilkie
#68967 93 94 95 Civic LX DX Engine Wiring Harness 1.5 5 Speed

^^ That's the title on the harness I want to purchase.

I have a 95 civic EX coupe with a d15b7 engine. That's 1.6l, 16 valve, single over-head cam, non v-tec with a 4 speed auto tranny.

Would I have any real issues with swapping the harnesses? The title says "1.5" (I have 1.6), "5 speed" (I have a 4 speed Auto), and "LX DX" (I have EX). The only part that really matches is the "93 94 95 Civic" (I have a 95).

I just don't wanna waste my money. This particular harness is priced at 75 dollars. 90 after shipping.
User avatar
By airride
#68976 why cant you just follow the colors and solder every thing back? :? just clean the tips real good with thinner and a rag and the colors should be noticeable. :thumb:
User avatar
By DJSilkie
#68978
airride wrote:why cant you just follow the colors and solder every thing back? :? just clean the tips real good with thinner and a rag and the colors should be noticeable. :thumb:


Your right, just one thing...what about the fact that half the plugs in the engine look the same and go in multiple places? and there are about 4 wires that are green with a white stripe.

I've cut, spliced, re-cut, extended and retracted so many wires in that engine that half the wires are not even the same color anymore. It's almost imposable to make any sense of it. This is my first time ever doing this and I failed miserably. Unless I can talk to someone that has memorized every single wire in my harness IN PERSON, it's not gonna run again until I get a new harness and tuck THAT one when I can afford to.
User avatar
By hkspowers
#68989 Well I highly recommend finding one in a junk yard or something second hand. A new one from Honda is like $600. I was looking into it when my electrical system was acting up. :cry:
User avatar
By Graham
#68992
DJSilkie wrote:Your right, just one thing...what about the fact that half the plugs in the engine look the same and go in multiple places? and there are about 4 wires that are green with a white stripe.


Most plugs will only go in 1 place, theres only 1 or 2 that could get muddled up
User avatar
By DJSilkie
#68994
Graham wrote:
DJSilkie wrote:Your right, just one thing...what about the fact that half the plugs in the engine look the same and go in multiple places? and there are about 4 wires that are green with a white stripe.


Most plugs will only go in 1 place, theres only 1 or 2 that could get muddled up


I beg to differ. There are more like 3 or 4 as a metter of fact...I'm gonna go look right now...

...k well I found 4 plugs that are exactly alike and a different set of 2 plugs that are exactly alike. the 4 are smaller that can fit in any one of the four places I found them, and the same goes for the other 2. The 2 are just larger.

What I had THOUGHT when going into this project, was I could clip all the wires, tear out all the plugs, relocate the battery and fuse box, plug all the plugs back in, and extend the wires as needed...

...What I soon found out, was that there are several plugs that can fit in many locations and I didn't take any pics to see where all the plugs go. THEN I noticed that some wires are exactly alike. I was under the impression that using the combination of a wire color, stripe color, and dot color, no two wires would be alike. I was wrong when I found there to be numerous wires that look exactly alike. Now it is imposable to tell which wires went where other than the ones with no twins.

Thus, I am forced to just UNDO my wire tuck, and replace my engine harness.

BTW I already checked the local junk yard. Civics are hard to find here and if you DO fine one, you'd be lucky to get a steering wheel. They are gutted within days and aren't given up easy because people mod em so damn much.
User avatar
By Graham
#68996 Your loom must be different to mine then as there were very few plugs that could get muddled up on mine...

As for your original question, you probably could get a loom from Honda but youre not going to get it for $100. If you really cant repair yours then you'll have to look for someone breaking an eg or keep trying junkyards, thats where i got mine but they dont turn up often as you say
User avatar
By teal_dx
#69003 If you guys saw the pics he posted of his harness, you would understand. I would recommend starting fresh too. Go look at your auto tranny, I can't remember if they have a plug of some kind on them or not. I know honda CVT autos do, but not sure about their regular autos. If your auto tranny does not have any harnesses or plugs on it, then I bet you can get by with any 92-95 manual harness. Personally, I would get the D16z6 harness since that is what your car should have and it would make it easier to put a z6 motor back in it one day. but seeing as you're in a jamb, get whatever you can at a good price :thumb:

Like I said before, My car was an automatic D15b7 when I got it, and now it is a Manual D16z6. I am still using the same engine harness now as was on the car when I got it with the stock D15b7. (I only added 3 wires & 2 plugs for the vtec head) So you should be alright :thumb:
User avatar
By airride
#69068 You owe me a beer :thumb: Folow the wires from the ecu to the plugs. For isntance. Look at injector one the brown wire and conect it to the wire that goes to plug one on the ecu. I think you are getting scared to see all those cut wires. Don´t let that shit get to your head. YOu can do it. Grab a beer, smoke a cigarett, sit down and go ONE WIRE AT A TIME! Have patience and you will be able to figure it out. After you are done, go over and check one by one.Image
User avatar
By DJSilkie
#69085
airride wrote:You owe me a beer :thumb: Folow the wires from the ecu to the plugs. For isntance. Look at injector one the brown wire and conect it to the wire that goes to plug one on the ecu. I think you are getting scared to see all those cut wires. Don´t let that shit get to your head. YOu can do it. Grab a beer, smoke a cigarett, sit down and go ONE WIRE AT A TIME! Have patience and you will be able to figure it out. After you are done, go over and check one by one.Image


That chart is wonderful n all, but I am still confused as to how it will allow me to re-wire all the plugs in my engine bay and tell me where each one goes. My problem isn't with the wiring harness into the ECU it's the ENGINE wiring harness. That chart does say something like...

"Here is a gray medium sized plug with 4 terminals, a red with yellow stripe, green with white stripe, solid white and solid black wire comming out of it. This plug goes on the underside of the intake manifold near the center."

The quote above I just made up so that's not a real plug, but that's what I need for ALL of the plugs...

THEN even IF you were to find/make something like that. It won't tell me where all the cloned wires go where. Remember there are multiple wires in the wiring harness that are identical. And imposable to tell apart. So this project is pretty much imposable.