K-Series Swap Wiring Explained!

In this video, I break down what K-Series Swap wiring parts are, why you need them and how they work together. Use this information to plan our K-swap. Contact us with any questions - [e-mail]
The parts in this video are specific to the 92-95 Honda Civic & 94-01 Acura Integra. However, the same concept can be used and applied to pretty much any car... just change the conversion harness.
Also... since we make and sell these parts, we recommend them. Yes, there are other options. There are a bunch of different ways to do this. This method is how we choose to do it and is the method in which we have had the most success.
Product links:
Hybrid Racing conversion harness:
1992-1995 Honda Civic & 1994-2001 Acura Integra
www.hybrid-racing.com/product...
1996-1998 Honda Civic
www.hybrid-racing.com/product...
1999-2000 Honda Civic
www.hybrid-racing.com/product...
Universal - Use this for any non-Honda or RACE application
www.hybrid-racing.com/product...
Ground wire kit
www.hybrid-racing.com/product...
Hondata KPRO:
www.hybrid-racing.com/product...
Rywire Tucked K-Series Engine Harness
www.hybrid-racing.com/product...
Denso o2 sensor
www.hybrid-racing.com/product...

[@brockrock8898]

The Del Sol never gets any love

[@krx_kid9104]

I've been running the Hybrid Racing Kswap Adapter Harness/Sub-Harness in my CRX for over 10 years. Never had an issue with it. Only electronical issues I've had, have always been in the factory CRX wiring (old, crusty wires).

[@mrs_radrod]

Thank you. I needed this video for a long time. I’m brand new and over my head with an engine swap and this is such a good explanation for all the harnesses and why/how they work.

[@hybridracing]

Thanks! Be sure to hit us up if you have any questions, [e-mail]

[@FrancisD]

Very good information here.. Please make more videos with how this should route/look in the car. Awesome info appreciate it.

[@GooseWurkz]

Excellent explanation, new to k-swap world and just wanted I needed, look forward to purchasing this conversion harness and many other hybrid-racing goodies!

[@destrkn]

I'm planning on k swapping my new beetle at some point and this video will help me out a lot. Thank you in advance lol

[@gabesmith9538]

Thanks you for simplifying the process and giving me hope again lol

[@josephruiz4153]

Love your content very helpful

[@superstarjay3564]

Stumbled on this video and what a great watch. I dont even have a kswap but nevertheless great information and also inspiring makes me wanna k swap something lol

[@bambue2946]

Thank You so much for this post information Love how you dropped the knowledge. When I'm ready I'll give you a call on my project. EG 4 door ex kswap.

[@Luckydimegarage713]

Finally someone puts it into English thank you

[@blacck1]

awesome video ! you explained everything so well ! this is good too know. i appreciate yoi for making this video !

[@kevintjivasera3608]

Clean explanation 👌

[@kleanstreetchannel]

I’ve done at least 6 swaps wiring , I always recommend this . Simple and reliable. 96-98 only needs charge light, coolant temp and fan switch. 99-00 is a little more work but still simple .

[@joelperkins8656]

i have a 96 and looking at the installation guide on the hr website it says to find the a connecter from the chasis harness on the passenger side and i cant find it. does that means i dont have to splice in all the other wires. only the ones you mentioned for the 96-98?

[@ExpressionCulture]

I do wish you guys did a plug and play adaptor harness to k-swap the CRZ ZF1

[@HyperCut_Films]

Great video Hybrid Racing! I’ve bought your conversion harness for my EJ9 Civic here in the UK and cannot wait to get started on my build! Most of the Hybrid Racing parts catalogue is being bought soon haha. Cannot wait! Great information and I’ll be using it to follow! What’s happened to the EK9 build also? Love that series! Thanks!!

[@hybridracing]

Awesome! The EK9 is on a dolly, covered up sitting in the corner of the shop for now haha. We will have more videos coming in the next few weeks.

[@HyperCut_Films]

@@hybridracing thank you for replying to my comment! Looking forward to seeing the updates, can’t wait!

[@bobbydelamar606]

Is there another video of hooking it up? Where do those other wires (green and yellow) go? I'm down to wiring in my K24A2 CRX. I have the Rywire and CRX conversion harness.

[@Esianegg]

Hey I'm new sub here bcuz your info is good

[@hybridracing]

Yo! Thanks for the support!

[@ShiftyReaperGaming]

Can you please make a video on how to do the immobilizer bypass you sell just get into high details

[@ShiftyReaperGaming]

Can you please make a video on how to do the immobilizer bypass you sell just get into high details or does the hondata ECU already have the immobilizer deleted

[@GarageRats]

Sold! I just bought it, but would still love to see how you install the harness in the car. You said "we will show you in a minute" but never saw it. Is there more coming on this?

[@hybridracing]

Yes, I had planned to film it all, but since it's for an EG it was sort of specific. We have guides on our site that show the inner section of the harness. If you need more direct help, shoot us an email. [e-mail]

[@Almostboosted]

Yes

[@cameronvogel9796]

Awesome stuff! So is the secondary o2 “heater” plug a lot of time just tucked away and not used? Or am I missing something

[@hybridracing]

Yes and no. If you are running KPRO, you typically do not use it and can turn off the sensor's function inside your calibration. That is what happens 95% of the time. If you are using a stock ECU (say a PRC Type-R ECU), you'd have to have it connected and plugged in since the ECU will be looking for the secondary sensor. But to your question, yes, you'd usually just tie the wire up and stick it out of the way.

[@alomechanthasinh4079]

Step number 14 in the conversion harness install guide: "Route the C101 blue connector on the Hybrid Racing harness to the driver side of your chassis. You can use the sup- plied zip ties to secure it nicely under the dash. NOTE: 2000- 2001 INTEGRA. Remove pin 7 Blue wire and connect it to pin 14 Blue wire. Pin 14 has 3in of wire that runs into the harness that you can pull out. This controls your TACH." Thanks in advance. Can you guys illustrate this in a video? *2000 Integra GS Auto to manual with 07 K20Z3 swap.*

[@josephruiz4153]

Is there a video of you installing all of this 🙏🏿🙏🏿🙏🏿

[@marlostewart1107]

Definitely love how Hybrid make this swap easier. I’m gonna probably K24 swap my hatch soon. Glad to know you guys will be there. PS… Would you ever consider doing a raffle, with 1st place being “k-swapped”?

[@Vashil_VtecSociety]

dc2 k swapped here, will my speedo work with the harness? Ecu: Kpro V4.

[@thisislargemouth5566]

I'm trying to swap a k into my old Datsun pickup. I don't think i need the conversation harness. Would I be able to run the K24 with a manual ecu and immobilizer bypass and just the engine harness? It do i need a conversation harness to hook up the o2 sensors?

[@user-ov8fs7zg7n]

Need help. My car is all gutted no more dash. Looking for a setup like engine harness to ecu with a monitor. What can you recommend on a stock k24a engine on a eg hatch gutted

[@briandalucatero696]

I have a tsx k24z3 what harness should I uses on my Honda Civic 2000 ek

[@jonnyfortin]

Are you going to post the second part of the video? Meaning the wiring under the dash.

[@hybridracing]

We have a guide on our website that shows how to connect the wiring under the dash of an EG/DC. Check that out, or email us if you have specific questions. [e-mail]

[@MrMostwanted95]

Can you provide a diagram or insight on connecting any other key wires that are specifically for a Eg auto non vtec chasis

[@s14ben79]

I also need this info

[@JohnnyFabz]

I’m surprised on the universal harness there is not wire for the Tach output. Had to pin that in to get tach signal for my dash

[@jr10158]

How you doing I gotta 96 Toyota Corolla I'm need a k24 wire harness conversion kit if that is possible. The car's automatic converting it to manual I have a donor car But I would like to get a nice harness for it.

[@lousashoe9417]

Wanna swap a k24 into a cg6 accord any tips?

[@tomstevens7452]

Rywire will make one spec to what you need as well

[@crucialmatt]

Will this work for a rd1 crv k swap

[@dsmfury]

Better explanation than rywire

[@carbon310]

How come ya don't make 05-06 harness conversion

[@Luckydimegarage713]

What do y'all have for an ef

[@kseries20-24only]

@Hybrid Racing What engine management would you suggest for a 2009 FG2? I'm leaning toward a 06 RSX-S swap with supercharge for a track focus build. Until I get the blower installed, but start adding bolt on's, what would allow me to manage those and someone to tune the blower when it arrives?

[@hybridracing]

If you have a 09 Civic Si FG2, I'd suggest Hondata Flashpro. There are tons of maps available for that car off the shelf, or you can have a custom tune created for any specific setup. Check out our website, we keep them in stock.

[@kseries20-24only]

@@hybridracing sweet, thank you! 😊

[@dangappa]

Do you make a conversion harness for a cross platform engine swap? Honda k24 to Volkswagen chassis, longitudinal mount engine.

[@hybridracing]

We offer a universal conversion harness which can connect the K24 to the 02-04 Hondata KPRO. You'll likely need a special RWD style K20A2 engine harness, but it should work. Check Rywire or WireWorx for custom engine harnesses.

[@AdamChase87]

If I’m going with a Haltech Elite ECU do I still need a conversion harness if I’m running their digital dash also?

[@hybridracing]

If you are going to use a Haltech ECU and digital dash, you still need the engine harness. I would check out the new Rywire K-series engine harness that is compatible with the Haltech ECU. It's what Eric Kutil uses in his race car, and the same setup we will use in our Drive-By-Wire EK9 with the Haltech 1500.

[@mizike55]

Does this Rywire and EK conversion harness combo support your AC kit?

[@hybridracing]

Yes, although the AC system is chassis-based and has nothing to do with the engine or conversion harness wiring. The AC compressor is controlled by the engine bay connector, so nothing on the engine harness will connect to it. Your AC pressure switch is also part of the engine bay wiring, so again, the engine harness won't have any effect.

[@ASHESPREVAIL]

Does anyone know if this setup works with a FT450 ECU display by fuel tech

[@anthonycr2976]

I bought the hybrid racing conversion harness and the hybrid racing temp sensor. I installed the temp sensor on the hybrid racing radiator and the temp gauge doesn’t work… any feedback ?

[@hybridracing]

Make sure the radiator is grounded.

[@gvainola]

alot of things are for RSX. Do they work on EP3?

[@hybridracing]

What products specifically? The wiring in this guide can also be used with the 02-05 Civic Si K20A3 engine harness.

[@Otjmore]

Do I need the 02 sensor installed before to get it started??

[@hybridracing]

The car will crank and run without o2 sensors, however it will run pretty poorly until you have the primary wideband installed and functioning.

[@MrZeroLag]

Do I need to have a 02 sensor if my car doesn't have a cat (crx) Can I just use a wideband only?

[@hybridracing]

If you are going to use KPRO or an aftermarket ECU you can run just the wideband and you will not need the O2.

[@Zeno_Citium]

would this setup work on a FIRST GEN (86-89) integra?

[@hybridracing]

Yes, if you use our universal conversion harness.

[@austinstubblefield5810]

ok @Hybrid Racing ... question. i plan on kswapping my em2 (k20a2 specifically) . can i use the ecu from a type-s or do i need a stand alone like a hondata

[@hybridracing]

Can you use an ECU from the Type-S? Yes, technically, you can with an immobilizer bypass. However, we will always recommend the KPRO since it will make your life much easier and the car work better.

[@austinstubblefield5810]

@@hybridracing awesome. thanks.

[@gregorytoussaint509]

CAN I JUST USE THE OEM 02-04 RSX TYPE S ENGINE HARNESS INSTEAD OF USING THAT RYE WIRE?

[@hybridracing]

Yes you can, however it will not be correctly lengthened to fit inside of the EG/EK/DC2. The OEM harness also has connectors you won't use, and it may not route the way you want. If you are ok with that, then yes, the OEM K20A2 engine harness will absolutely work.

[@carloszapien9296]

Slight bit of advice, possible update. MAKE SURE TO GROUND ENGINE HARNESS TO A STUD AND NOT A BOLT. Bolts wont ground out due to rubber valve cover gasket.

[@thenlskyliner]

Will this harness also fit on k20a1 or only k20a2

[@hybridracing]

The engine harnesses are made to fit any K-Series, as long as it uses the sensors from the K20A2 and uses a K20A/A2/A3 style ECU and conversion harness. The parts in this video can fit any K24A series or K20A / Z series.

[@paul06660]

I bought your conversion harness and had a voltage fluctuation issue with the main o2 plugged in. Made the engine run really bad and caused lights to dim up and down. I have 4 massive grounds all are pure copper to shiny bare frame. Ended up having to run o2 power straight to the battery and relay trigger from 12v switched under the dash. Any idea what may have caused the issue? Everything else on it seems okay and the car is a 97 integra ls with a k24a2 on kpro4 pnd ecu and base rsx harness.

[@hybridracing]

I have encountered it before, but it is nothing as severe as what you describe. I'd send our support team a message so we can get more info. [e-mail] Otherwise, isolating the relay and running power directly to the heater is the right thing to do. Just make sure it has the proper size fuse.

[@grant6985]

I had to do the same thing. My tuner had me cut the wire and reroute it to another power source. Was kind of disappointed after the amount I spent to be honest. Granted, this was 2 years ago, so it doesn't much matter anymore haha. I also had my card info stolen and had $1000 spent in Baton Rouge after buying from Hybrid Racing. I reported it to them and got told it "definitely wasn't them..." Even though they're out of Baton Rouge, it happened a few days later, and I've never been there before in my life.

[@hybridracing]

@@grant6985 I'm sorry to hear about those issues. Our customers and service to them has always been paramount throughout the course of our near 20 year history.

[@thonmoybhattacharjee3041]

Was there ever a part two of him actually putting this in the car?

[@hybridracing]

We installed it in one of the Thatdudeinblue's videos.

[@btibbs626]

My issue is I have a k24a2 out of a tsx will this tucked harness still work? I wouldn't want to pay 500 if it isn't plug and play. I don't have any idea about wiring. I just bought a battery tuck kit with charge harness but it doesn't have a connecter on it it goes to fuse box, battery, alternator, and starter. Wiring is just so confusing to me. If someone can point me in the right direction it would he greatly much appreciated!

[@hybridracing]

Please email our support team, we can walk you through it. [e-mail]

[@justinjolly9177]

What if we are using a k20z1 full swap? Which engine harness and conversion harness should I use?

[@hybridracing]

If you plan to use our conversion harness, you'll need to use the 02-04 RSX engine wiring and ECU etc. Basically, all of the parts that are in this video.

[@justinjolly9177]

@@hybridracing thanks for the reply

[@javierfabian5515]

I think I already know the answer but is there a way to K swap a 2000 Integra GSR and still be california street legal?

[@hybridracing]

There is a way to have K-swapped cars CARB legal. You will need to contact your local ref service and ask for advice and the rules to follow.

[@syloluon4969]

One thing i hate about being in Cali is the state ref laws. We were able to use jumper harnesses like these and pass ref and now we have to use a donor vehicle to get the original harness etc. Be great if these jumper harnesses were c.a.r.b legal .

[@coqui2415]

Do you guys have wire harness for a k24 swap to a 98 Nissan Frontier ? Thanks

[@hybridracing]

Not specifically for that, however you'd be able to use the parts in this video as well as the HYB-CWH-01-99. Check out the links in the description, if you still have questions shoot us an email.

[@coqui2415]

Copy that. Thank you

[@shazadali8160]

It said on website conversion harness does work on k24 how yous doing on a k24 then

[@hybridracing]

It works on K24 engines. It does not work with K24 engine wire harnesses or ECUs.

[@marxxs]

Would this work similar on a Fiat 124 spyder with a K swapped engine?

[@hybridracing]

You would use all of the same parts, except the conversion harness. Replace the EG/DC conversion harness with the universal setup on our website and yes, technically all of that work get the K-Series engine working correctly in the Fiat.

[@marxxs]

@@hybridracing wow! Amazing, I look forward to the swap. Definitely let you guys know how it goes👍

[@Trunet_ENT.]

If I have an automatic Hondata ecu could I still do this swap with a manual transmission

[@Trunet_ENT.]

????

[@hybridracing]

Yes. You will still need to convert the car to a manual trans with the pedals, etc, however, these parts will work.

[@liljovh8114]

Would all these work for my k swap for mini cooper ? Or would i need different parts

[@hybridracing]

All but the conversion harness. You should use the universal conversion harness with all of these parts listed.

[@liljovh8114]

@@hybridracingalso what hondata should i get ?

[@hybridracing]

@@liljovh8114 If you are going to use a Rywire engine harness or similar, get the 02-04 K-series ECU with the Hondata KPRO. We have all of this stuff available on our site. If you need specific details and pricing, email [e-mail], we would love to help.

[@Fyxxterzc]

Where's the charge harness? Built into the rywire?

[@hybridracing]

The charge harness is a separate piece that is included with the Rywire harness. Your alternator and starter wires are built into the harness, the only part that is not is the actual direct power link between the battery. Obviously, there are a ton of ways you can run your battery, but that is really the only thing that's sort of custom to your specific chassis situation.

[@jooeee23]

What's the best option for a k24a in an ek?

[@hybridracing]

02-04 engine harness - HR conversion harness - 02-04 ECU with KPRO and 02-04 wideband o2 sensor. All of that will plug into the K24 and plug into the EK chassis wiring. Email [e-mail], and our techs can get more specific with you.

[@brandond3404]

I'm doing the exact same build and I don't know if it's just me but I find the whole rewiring thing FAR MORE confusing than the actual building of the engine itself. I have an 08 TSX engine and they say use an 02-04 RSX LOL. I'm going to go with what they replied to you, but I still honestly don't get it.

[@jooeee23]

@@brandond3404 they actually sell a harness for a k24a now no need to change sensors or plugs lol. Rywire

[@jooeee23]

@@brandond3404 man I feel like my question was way older than 4 months 😆 🤣

[@brandond3404]

@@jooeee23 Right on man I'll have to try and find it on their site. Thanks for the heads up lol

[@rayclaudio4141]

Quick question folks I have a 2005 honda S2K So to make my life easier. Buy a 02-04 RSX-S K20A2 engine and this wiring harness and a RSX-S ECU/FLASH PRO

[@hybridracing]

@ray claudio, send us an email so we can get more info. [e-mail]

[@A.QPerformance]

For Honda K-Series wiring diagrams & ECU pinouts, especailly modern Hondas like CRZ Zf1,Zf2, Fit GD, GE, GK,GP4 hybrid,, Insight, City, Civic Si 07-11, Si 13+ models, Civic Base, FD1,FD2,FN2 aswell as older ones like EG, EG, Integra base. Also include C101, C124 plugs and their Main wiring harness diagrams. A lot people ask about them and i have shared them on many websites but image hosting websites sometime delete older pictures. That's why i thought why not make a video. kzbin.info/www/bejne/gH-ki5-imrWVaq8

[@djyond3rrr]

Bro where TF do fuse boxs come in

[@icemanjt2430]

How about y’all damn make a r18 to k24

[@vincenzoschettini5031]

𝓅𝓇o𝓂o𝓈𝓂 💪

[@ShiftyReaperGaming]

Can you please make a video on how to do the immobilizer bypass you sell just get into high details