Hello everybody, i am contemplating doing Plug N Play harness options for S5 and S6 RX-7's and i want to get people's feedback in this matter. The way i see it i can do a couple of options:

1. E6X/E8/E11v2 plug n play for S5/S6 using your stock harness and a patch loom between the Haltech and the stock harness, haltech has a for a few models of cars, and is constantly developing more, i cater to the ones that arent ready yet, they look something like this:



2. E6X/E8/E11v2 plug n play option for S5/S6 that would use a jumper harness between the stock ECU and the stock harness and "Tee" or "Cut" into the necesary wires, something that would look like this:



3. Or finally, build your own harness, using the Haltech's "Short Loom" option and an ODB1 styled ECU connector to fabricate your own plug plug n play with the features you'd like to use, I can also supply the bare main ECU connectors and pins so you can just build it your self if you feel up to the task. Something like this:



So, im taking opinions to see if there is interest in these things so i can build them. Also, please bear in mind that the pics you see here of the ones i make are all first prototypes so they are BUTT UGLY but they work 100%, so if there is enough demand i promise to make them a heck of a lot nicer.

 

Looks like a good idea, it would have saved me a ton of time and fear. Probley save units being sent back for repair. Good luck Clauidio.

 

I think you should put this in the third gen section. So many people get the PFC just because its easy and yet the haltech is so much better.

 

This would really be great for those that aren't so good at the wiring thing and/or don't have a lot of spare time. Splicing in to the stock wiring system is a PITA, especially when you're working on a car for the first time. I just finished (almost anyways) wiring in my E11 and I would have gladly had someone with more experience with the FD do the wiring for me! It's a little nerve wracking wondering if you've got everything correct. Somewhere along the line I'm sure I brainfarted and I'm going to spend gobs of time tracking down my error. I've rewired generators, turbine engines, and various other complicated as hell equipment and I still don't like it. A plug n' play harness is worth the money for time saved and reducing the risk of errors.

A little extra info in case someone could use it:
For those that still want to do their own I'd suggest these guys: http://autosportwiring.com/mazda.htm , or snipping out the ecu connector to make your own like you've done in one of those pics. Solder the wires on, cover the wires in quality adhesive lined shrink wrap, and then fill with some hot glue and you've got a really nice plug in harness! K2RD.com used to sell adapter harnesses, but I think they went out of business. They still have some excellent wiring drawings here though: http://www.k2rd.com/haltech/drawings/rx7drawings.html

 

i thought haltech already made these for the S5 and S6 cars?

 

They make an E8 patch loom for the S4 and S5, that's it.

 

I have to talk to them on monday to find out what is the status of those plug n play harnesses, i will post on here whats going on as soon as i know. Otherwise i will try to provide this service if there is enough interest in it.

Please be patient with me since i need to see what the demand is like in order to know if i will be able to meet demands. Im also trying to cater for other brands of cars as well, so bare with me on this.

 

Yeah believe me i know, its a lot easier to just let someone who knows this stuff back and forward do something like this, they will do it much faster than if you're tyring it for the first time. And on the K2RD stuff, yeah i spoke to the guy a while back on it but he's no longer in business. And i've also talked to the AutoSport Wiring guy and he makes really good high quality work, but his prices are a little elevated. What i hope i can do is offer something that you will be able to work with from the get go, and not have to do anything, just plug it in. Or if you want to build it your self, thats also an option, if you're upto the task.

 

Id like to ask another question, if you'd have the option to get a fully terminated harness that would be cut to length and heatshrink wrapped but the only thing you would have to get would be the connectors on your OEM harness, cut them off that and put them on the haltech plug n play/replacement harness, would you consider this an easier option? I know it would be hard to get the OEM connectors, so offering this option would also help make things easier and faster. This is also practical since a lot of people go with different brand of injectors and the connector isnt necessarily the same all the time, unless you previously stated which injectors you would use then i would put the proper connectors on the harness before shipping.

All you would need to do is cut your OEM connectors with a reasonable amount of wire behind them and splice them onto the already terminated leads for the Haltech harness. Im sure that with a good set of instructions anybody could do it.

What do you guys think?

 

That would be awesome claudio.. When are you thinking of doing something like this? What would prices be on this type of harness???

 

Right now im just looking at the market and what kind of a demand there is, im not going to start knocking out harnesses if nobody is going to buy them. And also, im waiting on Haltech's options for full replacement harnesses.

 

would the harness thing be something we send to you (the flying leadharness) then you do all the cutting etc. then send it back to us with detailed instructions? if so that would be SWEET!! then the next question is obviously price.

 

Right now im exploring options, but i can be flexible. Shipping costs would make that idea a little on the high side, but we could work something out. But when i said "ship me the harnesses" i meant the OEM harnesses for the connectors, so i can put them on the haltech harness.

The other option is just making the Harness completely and leaving the ends of the wires so that when you get the harness all you'd need to do would be splice your connectors onto it, or install the plugs and pins, or what ever is needed.

But yeah, all in all, price needs to be reasonably set so this is good for both you guys and me. This sort of labor is very time consuming, but when done right can be the difference between a 3 day installation or a 3 hour one.

 

I agree Claudio. I like the idea of you cutting all the wires to length then we use our existing connectors to solder onto it.

 

sounds good to me^^ just label the ends of the wires with tape or something so we know exactly where to put everything and there is no guesswork. im ready to do this sort of think now, so whenever you have a price, lmk.

thanks

 

Ok, so not the final poll question, what is more popular, E6X or E8. With which harness should i start first. I have in stock only an E8 flying lead and E6X short looms, so i would have to order some in to start working on that.

Let me give you guys an example, right now an E6X full flying lead harness from Haltech retail is US$230.00 and includes the harness, fuse block with fuses and the 2 relays, a Fully Terminated Harness from Haltech costs US$490.00 and it also includes the fuses in the fuseblock and the 2 relays.

In other words, a Haltech E6X Fully Terminated Harness + Connector Kit with the 2 temp sensors would go for US$1390.00, but this is RETAIL mind you.

However, and i still have some numbers to find out, i could be looking at a fully terminated E6X option with the 2 temp sensors for something in the neighborhood of US$1250-1350, and it would come labeled so that all you needed to do was run the wires and put your existing connectors on there.

If you were to just need the harness, we would be talking something like 400-500 dollars for the terminated harness option

What do you guys think?

 

In contrast, the short looms and this patch loom, or the short loom and he virgine ECU connector (yellow one):




So that you can build your own patch harness could cost anywhere form US$220 to US$300 and you built it your self. The cost of an E6X ECU, for example, on its own is around US$870 retail but im sure it could be a little less if demand is there, plus sensors if you need them.

Please note, that this would be for S5 and S6, since S4 ECUs have a different connector, which i could only source from bad or unwanted ECUs and pull it off to make the harness.

 

I would be interested in a patch harness that goes in between the Haltech and the factory harness. Just plug one end in to the Haltech and the other end into the factory harness.

 

that is exactly what i would be interested in

 

the only downfall i see with 2nd gens is the fact that the stock wiring is a little old. but it would save alot of work and time!

 

This is why we're contemplating doing fully terminated replacement harness for FC's, you take your engine harness out and you replace it with a brand spanking new haltech harness that all you would need to do is minimal power and ground wires, fuel pump, and worst case scenario, you have to splice in your own connectors to the already made haltech harness, since they are hard to come by.

 

Thanks guys, this help.

Thanks guys this is exactly what i am looking to know. Keep it coming.

 

Ok, next question!

Option 1, how would it work best. making the harness feed it self in the same manner as the stock engine harness, which gets power from that white connector that goes to the vehicle harness (would imply that i get an engine harness to pull all the connectors off it and mimic the stock layout. This would mean that it would have to use the stock fuses and power supply wires to feed the injectors, IAC and alternator, and the fuses would be those found in the car (haltech uses a 3A fuse), so im a little aprehensive about doing that.

Option 2, After removing the engine harness you are left with no wipers, since the wiper harness is tied to the engine harness, and your water temp gauge in the dash also runs through there, so you'd get a full harness from haltech, that also has its own fuse block and relays for the fuel pump and power wires for the injectors and IAC if needed.

Note: On these 2 options, the power and signals for the ignition coils are spliced into from within the cabin, using the stock harness that goes from the ECU under the dash to the driver side components. If you have removed this harness from the car, you will need to let me know, since wiring and power will have to come from the haltech/vehicle harnesses.

So, what say you to this now?

 

i think alot more people would go standalone if they werent so intimidated by the wiring harnesses(which arent too bad). that means less blown 7's

 

I still would prefer just the patch harness. I have no known issues with my wiring harness at the moment, so I wouldnt find it all too necessary to spend the extra money when my harness will work for the time being.


What kind of prices are you looking at? Also, what does just the E6K/X cost?