Why not post pics of the wires so we can see how fucked up it is rather than trying to describe it?

 

Well, my main computer is down right now so I'm on a different computer that doesn't have the stuff to upload the pics from my camera. I'm going to switch the stuff over tomorrow since the bastards at Western Digital don't seem to be in a hurry to respond about RMAing my hard drive that died.
Overall I'm pretty happy with the harness. I was a bit worried once I got everything unwrapped that I had bitten of more than I could chew, but once I trimmed out the useless stuff and orginized the wires it wasn't too bad.

 

There are heat, moisture and oil resistant electrical tapes available. Ask your local 3M rep for his/her recommendations. There are also various sleeves and covers that do a great job in protecting the harness. I just use split corrugated wire loom available at most electronics stores. Most of the OEMs use it and it obviously holds up over time.

 

I have no idea who my local 3M rep is. I guess I will go down to Home Depot and see what they suggest there. Or I could try the auto parts stores too, I guess. Anyway, thanks for the suggestions.

 

I've rewired/wrapped many harnesses.

The wires are gernally ok except I've seen some pretty bad oxidation on a few(ground ring on engine block and a few connecters like boost sensor).

Here is the most recent harness I've done.

I wrap it with electrical tape first.
Then it gets a self adhering rubber tape which is water/oil proof
It then gets another layer of electrical tape for looks and for abrasion resitance since the rubber is not resistant to that.

Then I use wire wrap/loom to help protect it in the sections which are near vibrating/moving parts.

 

You probably have a local electronics store that can get you the appropriate tape. They will either have it in stock, or can order it easily.

 

That looks great! Where do you get the rubber tape and what is it called? That sounds like just what I was looking for.

 

It's something like self adhesive rubber tape at Home Depot.

 

I got some Scotch Super 88 tape (the best they had) and some wire looms at the local electronics store. Once I finish wiring everything I'm gonna run down to the home depot and see if they have any of that rubber tape stuff.

 

Well, I went to home depot and got some 3M Temflex 2155 Rubber Splicing Tape and some Temflex 1755 Friction Tape. I'm gonna put on the rubber tape then the friction tape then the wire loom. It might be a bit of overkill, but who the hell cares if it does the job.
Thanks for the tips on the stuff to get.

 

sounds like a good deal, cant wait to see pics... are you running stock ECU or you have a plug n' play ECU?

i have a question about this job as im not familiar with rewiring and cutting...
once the emissions wiring is removed will there be any i'll effects as to the ECU not getting signals for those senors and solenoids?
i have a friend of mine whos building a drift only FC and he's trying to keep costs very low and one of his last projects for the car is engine wiring and ecu.... he either wants to go full stand alone with custom harness ( a last resort) or use stock harness with piggyback A/F controller and EBC, or find an APEXi Power FC ( i heard they were discontinued....or is that for FD's?)

 

Well, ideally its going to look stock
I have a feeling Digi7ech's will look fancier than mine because I went cheap and easy and used the split wiring looms like Aaron talked about, same as stock.
As for the emissions clips, the ECU doesn't care if it doesn't see them. Mine have always been unplugged with no problems.
Also, I didn't really get any good pics of the bad wires because my camera wouldn't cooperate (stupid auto focus...) but I did get a couple other pics. Notice the extreme color change on wire in the second pic. From Green/White to Dark Brown/Brown!

 

looks good i too want to do this but dont have the time. alot of my wires are missing and the injector clips are so badly melted im afraid they will fall off. i will soon be splicing in a emanage ultimate and was wondering were you able to soder these wires or are the aluminum and dont take well to soder?

 

ps. digi7 that harness rocks sorry sideways your is nice but the blue and everything looks real nice are those all new wires?

 

With VERY few exceptions, all wires are made of copper. You will need to clean the wires well, though, because they will likely have gunk on them and the solder doesn't like to flow well on dirty wires.

 

S4 no, S5 yes.

If you're that bad then they need to be replaced. This is the sort of thing that can leave to stranded on the side of the road when and injector clip falls apart, so I'd make the time to fix them.

It's solder, and all wires in the car are copper and can be soldered.

Everyone complains about having too much wiring, so I would've thought you'd want to keep them less visable, (i.e. black), not make them stand out. Just my opinion...

 

No, Mostly original wires.

That's actually a S4 NA harness I rebuil;t for a local guy which needed S5 injector plugs and a few others things changed.

Most of the stock wires ohm out to nearly zero ohms so they are still usuable.

 

I sure hope you like his better. lol The only pic I've posted of mine so far is when it was ripped apart.
I agree that his looks nice, but I try to keep my wiring harness where you can't even see it.

Now, I have finished with all of the stuff on my harness. For future reference, the rubber tape is a huge PITA and barely sticks at all. The friction tape was excellent, though. It stuck very well and made the harness nice and tight after that damn rubber tape. I highly recommend putting that on the outside of your harness if you are redoing it.
On the pics, they are in stages. The first is after the rubber tape (white), then after the friction tape (black).

 

yea i cant spell, ill be taking the intake manifold off tomorrow and working on the hanress its very very bad, i have 800cc injectors and new connectors to put in so that should solve the connector problem. as for the other problems im still searching. Not trying to steal your thread sideways but does anyone know if there are different harness for us and jspec? i am missing a 02 connector the wiring diag says its grey i have no grey connector actually i searched the harness and dont even have the o2 connector. ill be searching more tomorrow i thought it came out by the where the injectors came out but i didnt see it.. p.s sideways your harness looks great very simple looks like you got ride of everything you ddint need. once i get my block off plates i hope to follow your path

 

I believe that a few of the connectors are different between the USDM and JDM harnesses. NZ knows the details. On a-spec cars the o2 sensor clip is kinda yellowish and the wire is black, at least where the connector is. It is basically a glorified spade connector.

That actually reminds me about a question. Is the o2 wire supposed to be shielded all the way to the connector? Because on mine the shielding stops before the connector.

 

RHD vs. LHD = completely different harness! The difference obviously is what side of the engine bay it comes from, but the equipment is in the same location on the engine no matter what car the engine was in, so the general layout is similar.

No the wiring diagram says the wire is grey, not the connector. In the engine bay the exposed wire is actually black.

It comes out at the same place the BAC valve wires do. You can see it in this pic. You can also see the stock connector, which was probably white translucent plastic that has yellowed with age and heat.

https://www.rx7club.com/attachment.p...hmentid=118531