How To Hook Up An LS Swap Wiring Harness!
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- čas přidán 21. 05. 2023
- Do wires scare you? Too many plugs? Too many wire colors?
Well, don't fear. Krusty Classics Garage is here!
In this video I show you what to hook up and where to hook it up!
This is specifically for Gen 3 LS engines only.
Amazon DBC harness (If you need a DBW harness just search "DBW LS Swap Harness") - www.amazon.com/gp/slredirect/... - Auta a dopravní prostředky
Best video of a harness swap. I'm actually mad at how simple it really is but "terrifying" to me to want to do it
Very helpful. I love the way you make this simple!
Thanks a lot for this detailed video, bud! I finally got my 8.1 swap to run. Now I have to find a video on tying in the fuel pump.
bout the best description ive seen yet made it really easy thanks
Clear as mud with all the a and ums and back and forth. But i think it helped me. Doing my motor mounts on my 5.3 XJ swap today so not too far from wiring. You did clear up the relay and power wires for me.
A lot of good info in this video!!
thank you Big Dawg....im learning a lot from your page...
Good tutorial on the harness and drive by wire differences. I want to go LS in my 71 Lemans 😊 JR
Do it
Damn dude wish you lived closer. Doing a LS swap on our 63 c10. Im Doing this with my 15 year old and lots to learn. I'm one of those type that love to learn but brain goes crazy with decisions.
Cam sensor and MAP sensor on passenger side (I know you know that/ slipped ur words) just incase someone is new to this.
Great info... thank you
Great video 2:01 got me on the right track. You have any videos of how you connected the red power wire to the cars bulk head part of the harness in lost in how to set that up
Hey I have the same wiring harness. So the 5 pin is split 3 wires going to one connection and 2 wires go into another connector. It's for the setup that have that have the intake sensor separated from the MAF.
Hey great content, I am researching information so I can get ready to swap my 1988 Chevy c1500 5 speed. What ls engine would be the easiest to hook up. As far as for fitment. Also would I have to replace my dash ? Thanks again for all the good info 👍😀
Can you use this same wire harness if you’re running a 700r4 transmission? In the process of doing a ls swap thanks to you I’ve been very successful and I appreciate your videos
You made it seem alot easier to do a ls swap now I don't feel so dumb
Do you have any more videos hooking up the power wire inside the car because I am going to ls swap
Thank you
Question I have a 93 k1500 4x4 wanting to do a swap can I use my factory transfer case and is there a different harness I need tia
Hey brother question I have a 700r4 fully built less than 500 miles on it I wanna mate my 5.3 do I need a different harness or will that same harness work? Appreciate the video!
Can u change the drive by throttle body, instead of using the pedal or do I have to swap harness and computer
Hey great video!
Do you have any suggestions on where to add a kill switch for theft prevention? Thanks!
The power on ECM wire. Put a toggle switch on it and hide it
I'm going to do a l.s swap I got a 08 Chevy van I'm putting it in a 94 Chevy truck what gen is the 08 and it's d.b.w is it going to be difficult to put in the truck
how do you tie the factory harness in with it to use the factory guages an start it
Can you do a vid showing the hookup of the fuel pump and key on power etc??
Thank you!!!!
Ever figured it out?
Not yet@@@MOE13576
@@6xcchamber971 damn, really. I've seen a couple of videos that might help you
Been working on building some guitars since I responded to this video! I will give it a go soon. Thanks for getting back to me Awesome!!!
Merry Christmas to you and yours!!!!!!@@MOE13576
@@6xcchamber971 really that's cool. I always wanted to learn ti play guitar...when ever you get back to it and still lost hit me up...I still have hook those wires up(current state)..You're welcome. And thank you. You too, man Merry Christmas!!! 👍
Pretty good video. What about the wires that are coming from the new fuse box where do you hook them up like the TCC the MIL
TCC goes to a 4 prong brake and MIL goes to a light you put on the dash or somewhere to resemble a check engine light.
Great video i thank you for responding to me when i asked you what fuel pump i should use for my obs. I haven't had any problems with it ever since. I have another question do i have to tune the ls swap for the transmission cuz i had 2 transmission that worked good for a month and after of using the truck it went out on me. The transmission were good. So if you could let me know please i appreciate it.
You can tune shift points but not much else. The transmissions were probably no good.
U taught me something I thought it was ignition relay. And fuel pump relay
Nope. You are correct. On this harness that is the ignition relay. Thanks for pointing that out.
@@krustyclassicsgarage I'm still learning.
Wat ecm did you use for dbc with the ls swap harness?
How do you convert an LS3 DBW to DBC? Thank you!
Sub'd!
Is this a link to the exact harness you have in the video and was anything pinned wrong I noticed in the comments of the part that some were pinned wrong on a lot of the harnesses on amazon
What transmission you can use ls 6.0 ?
so who did you buy this harness from? I clicked on the link and contacted them but the MAF sensor is a 3 wire. I need one like yours, a 5 wire.
Please respond
What o2 sensor you use?
I fought your same confusion with the same harness at the 17:00 minute mark. They wired the MAF for either 5 pin MAF or early gen 3 where the IAT and MAF are separate. If you note the 5 pin MAF wire colors are the same as the separate IAT and MAF plugs. Great video. Did you have any other anomalies with the wire harness? So far I can't find any problems with this harness out of the box like a lot of the china harness videos talk about from years past.
Thank you...thats the answer I was looking for
Great video, thanks man. If I'm wanting to start with a TH350/Non-Electronic Transmission am I able to use the harness with the 4L60e connections and just leave them unhooked for now or will the ECU expect something if those wires exist? Was planning on starting with a th350 for now and then switching over potentially to the 4L60e down the road so it would be nice to only have to run the harness once.
Yes. Just have to have something in the computer changed so it knows it's not using an automatic transmission
@@krustyclassicsgarage Thanks for the reply. I'm looking at ECU's programmed to be used with the non-electric transmissions, just wasn't sure if the pinouts were still the same (just unused pins for the transmissions I guess when programmed that way?) so that I could use the same harness and just leave those wires disconnected. Hoping I understood your answer right, and that works fine.
If my throttle body is DBC, and my PCM is DBW can I just swap the PCM for a DBC?
Whats the number on wire harness number i got a 5.3 truck intake an its got wire throttle body an want to go to cable throttle do you have the number i need
And how does it get fire from truck to power everything 🤔
Any gen 3 ECU (P01 or P59) will do DBW, just flash it. The extra module is just an IO expander; it relays it's readings to the ECU, and only controls throttle based on ECU's commands.
Any mis pinned wires or wrong connectors?
🤣🤣🤣How did I know you was going for the brake clean.😅
😆
What about the wires going into the cab?
Hey man quick question with the red constant and start wire what did you wire that to I have a push button start would that wire into that if that makes sense
A switch you flip on and it gets constant power. That's how my cuda is set up with a push button
@@krustyclassicsgarage thanks brother
Is there any cheap harness that are better than others? Also, i know you go iver it, but the 3 wire maf sensor...you just buy an adapter harness to 5 wire correct? Because i cant find a cheap on that has a 5 pin maf.
All the cheap ones for a Gen 3 have 5 pin connectors
Can you recommend a dbc harness with t56 or non electronic transmission..gen 3
For non electric transmission you can use a dbc harness that's set up for any transmission. You just don't use the transmission plugs. There are DBC for t56 transmissions on Amazon
I got a question since those 2 red ones go to the big lug on the starter do I not put anything on the small lug?
You put whatever wire goes to your key on the small one.
@@krustyclassicsgarage for sure thanks I went from a harness that my buddy made, to this one and it’s completely different lol I appreciate the insight
Hey brother. I am doing my first swap. I bought a ls3 block cheap. Otherwise I'd be running a 6.0l. I am putting it in my 03' Crown Vic P71. I am still in the getting all the parts together stage. Do the Amazon harnesses last? I don't want to pay $1500 for a high end harness if it will last almost the same. I plan on keeping this car till I die. I am 47 so hopefully that'll be a while lol. I am eventually swap in a 6L80 or a CD Nissan 6 speed manual out of a Titan or a Xterra. They make conversion plates for the CD now. The A5 out of the Colorados don't handle big power.
Amazon harnesses are only for Gen 3 engines. An LS3 is a different animal and some sensors are in different spots and have different plugs. An LS3 has a different reluctor wheel. So, your best choice of harness would be the expensive holley terminator.
Ls3 block. They have conversion sensors to change the 58x/4x to a 24x/1x. I just have to lengthen the cam wire to run to the timing cover.
@@GrandPitoVic there you go. But as far as the Amazon harnesses. They're all I use.
I am Def running DBC. I don't want to mess with the pedal and the pedal modual and all that. I want it to just be as simple as possible. And I just found on Amazon from ICT a 48" harness that runs to the timing cover for the cam sensor. I will have to get a 1x cam gear and sensor. But you have me exited to get mine going. You just saved me a ton of money. I appreciate it brother.
If the two wires go to the big post of the starter, and I’m wiring this up to a switch panel with a push button, on the output side of the push button switch, does that go to the small post of the starter?
You'd need a wire running from back of push button to big post of the starter and another wire running to the small post of the starter
Thank you! @@krustyclassicsgarage
where do you get your man power source for the harness. no one includes the base power of the fuse panel.
Harness comes with 2 red wires that go on the big lug of the starter and then the fuse block has a small red wire coming off of it and that goes to key on power. Make sure that key on power is also powered while cranking.
Do you use any of the original wires like the battery ignition alternator
Yes.
What’s a gem 3 ?
Is the entire harness powered off of the two wires going to the starter? I’m confused where it’s getting power from
Yes. And small red wire coming from the swap harnesses fuse block
Do you need the neutral safety plug on 40L60 E transmission in the swap or can you wire another way
Not needed
@@krustyclassicsgarage cool thanks
Do you have to have that harness to do the swap ? What if you have a donor truck with everything?
The trucks harness has to be re worked if going into a swap vehicle.
@@krustyclassicsgarage lol I wished you lived in Houston Tx I would just take it to you I dnt know if when I’m ever going to finish up my swap
What if I’m using a drive by cable harness just like yours but the computer is from a suburban with drive by wire?
Won't work
most harness i get from scrap yard are good but Holden 2008 up more crispy than suv but 2013 2014 gm suvs are not the best the plastic get dry fast most time get them with pcm and maf becuse maf came more than type
Do you have a recommendation for a harness for an LS1 with T56?
Ebay/amazon/BP Automotive
And did you rework your wire harness or did you buy one?
Bought one
I bought a 05 5.3 with the ecm, guy didn't have the pedal to go with it. Can I buy a dbc throttle body and use it on the 05 intake and just get a new harness and computer?
Thanks
Yup
@@krustyclassicsgarage preciate it bro
Can you make a video on how to hide and run all the wires. There’s not that many videos that show it.
I should have included that in this video as that's what I did after recording. I always run the harness and plugs under the fuel rails.
@@krustyclassicsgarage so you didn’t record it?
Is this the harness for a lm7 as well?
yes. Any gen 3, dbc set up
What intske manifold is that
ls1
Do you have to wire up the neutral safety switch or no? I have the painless standalone wiring harness! And what do I do with the harness in the vehicle?
Great video but why you spray chemicals on your foot like that.
Don't worry about it, are you his parent?
Speak on grounding points
Why aren't you wearing clothes???
Why tf are you worried about what he's doing in his garage, it's not like he's doing welding or mechanic work, he's just talking in the vid. Pull your tampon out, Nancy