💬 How to wire an LS engine | TECHNICALLY SPEAKING
ฝัง
- เผยแพร่เมื่อ 7 ก.พ. 2025
- #haltech #LS #wiring
Wiring an engine can be a daunting task but with a Haltech Terminated Wiring Harness it's actually quite straight forward. In this video we show you how to wire GM's popular LS engine using an LS Terminated Engine Harness. This step-by-step guide will explain the whole process showing you exactly where each plug goes.
------------------------------------------------------------
Harness used in this video: Part Number: HT-151367 (Harness + Elite 2500 ECU)
Suits: GM Gen IV LSX (LS2/LS3) DBW, factory EV6 injector connectors.
Includes: Fully terminated engine harness with fuse block kit and pre-wired to connect directly to OEM 7 Pin Coil Harness Connector. (Ignition coils and harnesses are not included)
Other GM-specific ECU Kits: www.haltech.co...
--------------------------------------------------------------
Liked this video? Here are more like it:
6 Ways to Wire in your Haltech ECU: • 6 Ways to Wire In Your...
How to Crimp Like a Pro: • How To Crimp Like a Pr...
Engine Knock - What it is and why you should avoid it: • Knock Control - What i...
------------------------------------------------------
Like this video? Subscribe to our Channel.
------------------------------------------------------
For more Haltech goodness check out our:
Website: www.haltech.com
Facebook: / haltechengin. .
~-~~-~~~-~~-~
WATCH NEXT: "🏅 Jason Waye's Barra Powered Fox Body | HALTECH HEROES"
• 🏅 Jason Waye's Barra P...
~-~~-~~~-~~-~
Scottie is so good...;) and that silky smooth voice...! I can listen to that all day, that's the definition of no drama ;)
LOL we should have him on one of those "charge-per-minute" chat lines:)
+haltechecu I wonder how many call Haltech support line hoping to hear him on the other end :)))
As a motor mechanic that left the industry in 1990 this crap does my head in.
The good thing is the Haltech Manual explains everything step by step. I remember my first Haltech install when the E6 just came out, I just read the manual and learned EFI install step by step. Will a little help I was able to tune although there were no UEGO controllers available at the time that was affordable, unlesess you had a friend in a F1 race team and they would lend you their Horiba (the size of a weekend suitcase) . No a a days they are dime a dozen.
The labels on the cables is rad haha
Got to love the none LS comment questions.
very encouraging as its all labeled....love it
That's the idea, to make the whole process as easy as possible. Every single cable is clearly labelled.
Nice work.
This is a nice setup, but it makes me so thankful for the simplicity, reliability, and roadside tuneability of my carbureted engine.
I am so gonna get this!
👌
That's awesome!
Thanks a lot
I like it
Interesting.
looks good. Is there any chance you do a kit like this for an sr20det? if so id love to see a video on it as i am planning on doing the swap in the near(ish) future. cheers guys
We actually do a Pro Plugin ECU for the SR20DET, so you can use the OEM engine harness and plug the ECU straight into that. Easy:)
+haltechecu okay cool I'll look into it cheers. Love your work
Thank
nice vid, but this for a RB 25 / 26 and i more happy
Coming soon:)
Very easy wiring . Does the elite offer rolling anti lag , back pressure, and what kind of egt probe does it use?
Rolling anti lag - Yes, exhaust back pressure - yes, we can log that, EGTs - we use open tip, K-type EGTs.
Obvious question of the day. What if I told you what I'm driving, could you add terminals to the in cabin wires?....If you can't tell, I love plug and play solutions and I'm lazy.
FYI....looks like the motor I have on my ride on mower.....lolz.
Is it possible to program the tune so that it can accept "drive by cable" instead of wire?
If someone can't plug in a harness they shouldn't be messing with a standalone engine management system
Good description on the wiring harness. But you did not mention anything about programming the computer if you're installing the motor in a muscle car. I'm thinking of installing an LS motor in a 68 GTO. Need to configure wheel size, gear ratio. are you going to have another video describing how to do this computer programming?
That's not a topic that we can cover in one video as tuning is different for each car/engine. We do however, have training seminars which teach you the basic of tuning and in particular how to tune using Haltech's software and hardware.
Haltech .. where can i get the base map for LS1/2 etc .. so i can jump start the engine
Y no plug for the AIR CON pump
a question... why the 2500 elite seris wont work with the factory gauges and how do wr make it work .
ps: i have a 98 trans am with LS1 engine
They are wires labeled STS. What are those for?
planning on LS swapping my opel omega ( GM/holden platform) but i want to keep the factory dash/dails... is it possible to use the factory stuff with the LS loom kit and ECU?? i've got an electronic speed sensor in the gearbox, and a crank position sensor that is also used to show RPM`s or do i need to config/wire that in differently??
if you need more info and pictures im willing to provide those via Email should you request it
Your best bet would be to chat with one of our tech support guys - you can reach them via email on support@haltech.com or you can submit an enquiry form here:
support.haltech.com/portal/en/newticket?departmentId=309315000000006907&layoutId=309315000000074011
How does my haltech iq3 street dab hook up with my elite 2500 ecu and ls3 terminated harness? the can low/high connector suppied with the iq3 street dab has no where to be fitted on my ecu or harness?
If your IQ3 Street is the only CAN device being connected to your elite, you require CAN cable HT-060201. If you’re connecting to a CAN hub, you require CAN cable HT-060200.
Will this run a 4l60/80?
Yes
Is this loom offered on its own with an OEM plug if you were going to retain the standard ecu?
This looks about the most painless way to convert to LS, but I just dont need the flexibility of a haltech ECU unfortunately
Unfortunately no. This harness is terminated to suit Elite ECU. OEM ECU actually sits inside the engine bay so the harness is completely different.
Hello do you make a 2006 silverado 2500 6.0 ls harness and i want to use the 4l80e 4x4 transmission for my 1972 k5 blazer.
What about if your not running drive by wire (old school cable life)
Yep, we also make a terminated harness for the non DBW LS2. Part Number: HT-141364
guys do a terminated wiring kit for a BA Falcon 6 cylinder?
Hi, I want to swap my 06 GTO to Manual. Does the ECM come with it? I'm ready to buy
These terminated engine harnesses are available on their own or in a kit with an ECU:
www.haltech.com/gen-iv-lsx-ls2ls3/
Are they any plugs that go to the transmission???
There is a vehicle speed input wire available, however this is not terminated as the plug would change depending on which transmission you are using.
You must make a 4g63 eagle talon harness
Would this work for the L98 out of the ve commodore? Into an s14
Yep, should be almost identical, you might have to change the map sensor connector.
ls2 vortec saab 9-7
Bro help please !, After installation lpg, mixed 4 and 6 cylinder. In the original bundle 6 and 4 cylinder GND- two green wires and one with a black strip. Where is it, help
If I want to have a carb on my LS, how should I go about the wiring?
Carb in this day and age?
Caribbean GTR - Yes, they're simple, easy to tune, and they sound glorious. And they're cheap.
If going carb...y not instead go with the Holley Terminator EFI Stelth???
please do a video like this for the 1jz gte or 2jzgte please
2JZ wiring video already in planning:)
marvellous ^) 2jz into the 2009 lexus is250 would be the ultimate build..
Make a conversion harness for my jummer h2.
Sorry no plans at the moment for jummer conversion harnesses...
Ware do I buy your wire kit from online or dealer in a America
You can purchase it through our online store, Reggie
store.haltech.com/usastore
do you have vido for 2jz turbo
Coming soon.
Swap this into my s2000
When you do send us a photo:)
+haltechecu no, I'm asking you too. :)
Gross!
Is there a better way to die?
mad
first!
i have an 03 avalanche 5.3 motor whats ya phone number and how much cause i hate the wires all over the top of the motor
We only sell the products we don't actually do wiring services but there should be plenty of local qualified wiring specialists that can do that job for you.
Haltech i wanted to call you to make sure you know exactly what kind of truck i had and how much it would cost for that product
You can call one of our offices during business hours and one of our sale/support guys will be able to help you out.
Aus: +61 2 9729 0999 USA: (888) 298 8116
This kit is like $10,000
You mean including the engine?
The ECU + Terminated Engine Harness Kits start from around USD$2275.
www.haltech.com/product-category/ecu-terminated-engine-harness-kits/
If I wash Your boat, will you do a tune for me for free?
step 1: tie wire around engine.
step 2: tie other end of wire to any non GM car.
step 3: drag LS to the dump.
step 4: dispose of LS.
LS engines are the most popular swapped engine in the world cars boats and even planes they're also proven to hold up under pressure even when heavily modified it is incredibly reliable
Marlin Kleber speaketh the truth.
+Marlin Kleber my uncles Bayliner Boat had a chevy 350
You also offer HT-141366. Same description and price as HT-141367. What the difference between them.
most b a ford goof
To complicated..
Thank