How To: Install Terminator X EFI on any LS Engine

If you plan on installing a Terminator X on any LS engine, this video is for you! Terminator X works on any LS-based engine including common 4.8, 5.3, or 6.0 truck engines (often referred to as Lq4, lq9, LM7, L33, etc.)
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[@SloppyMechanics]

Really good overview guys, covering all the points!

[@robmespeedy]

I’ve been watching several of your videos. They way you guys script everything makes it so easy to understand how it works. It makes it less intimidating to go for the conversion.

[@FTGMotorsports]

Great video - after doing several Terminator X installs on NA, stroker and Supercharged LS's I would agree its that easy - Terminator X is the absolute best all around at this time

[@BAHRacingTeam]

How is easy it for someone with zero tuning experience? Putting a 6.0 LS in a 1989 mustang

[@FcDominick]

Never has a video fit me so well, also have a Ls powered Studebaker. It runs a stock ecu, I believe I need to change that to a terminator.

[@jord9308]

I follow Sloppy Mechanics and based on Matt’s example, I bought a Terminator X system. I replaced an aftermarket system and followed the instructions- easy installation and it fired right up. Very happy 😊

[@paulmitchell8005]

This is great! I'm looking forward to purchasing a x-max soon and this makes me feel a bit more comfortable installing it myself. Many thanks from Australia!

[@DavidGuyton]

Man this is AWESOME. Now I gotta get another car to LS swap.

[@SloppyMechanics]

Are you guys using new firmware than what you have listed on the site, my last few installs did not show fuel pressure or any other map sensors than 2.5

[@GlobalMediaInc]

Great Question, Matt!

[@motherlovinsnuffstar]

Dude now we all gotta know that shit!

[@Lee-rc5en]

Any update on this info? Did you cover it in one of your vids Matt?

[@sethdooley9195]

Putting my LS3 together right now. Can’t wait to get it fired up with a Terminator X. This video and Sloppy Mechanics have been very helpful.

[@ModernBeastx1]

did you get the ls3 going?

[@sethdooley9195]

@@ModernBeastx1 he'll yea, Terminator X is a great system. Very happy with it, engine is a beast in my thirdgen camaro

[@ModernBeastx1]

@@sethdooley9195 post a video man!! i got a 5.7 out of a 99 corvette im building right now just got all pistons and rods in going to finish building it next week and then i gotta save up for the terminator. What tranny you running?

[@sethdooley9195]

@@ModernBeastx1 Magnum F with a monster stage 2 clutch and flywheel.

[@ModernBeastx1]

@@sethdooley9195 😮‍💨😮‍💨 man I wanna see it! You should definitely make a video

[@C_71]

I don't get all of the complaints, it seems pretty straightforward!

[@95turbostang21]

By far the best tutorial out there on the web

[@minitrucker04]

Got a Holley system on my truck and I love it!

[@gulfdawg2806]

minitrucker04 I’m getting ready to hook up my x max kit .. is it a certain throttle body needed?

[@minitrucker04]

gulfdawg2806 I have a drive by cable and you can use pretty much any tb. If u have a drive by wire I’m not sure on that one. I have never messed with a drive by wire.

[@LogansGarage]

Just bough the terminator x for my 350z LS swap. I'm very excited to get it installed! Great informational video.

[@markstowell7771]

I was looking to do this also. How did it work out?

[@LogansGarage]

mark stowell It worked out perfect. I’ve never had an engine start so easily. I have a playlist of the build on my channel.

[@admiralfloofz658]

Think Im gonna go with this aswell. Got a 71 Camaro with an LS1, LS6 intakes, patriot heads and comp cam. Currently stock ECU and its idling really badly since its not tuned. (bought it like this)

[@TheReinoPaasonen]

Holleys tech videos are best in industry.

[@aztekwarrior518]

This kit is awesome and I haven't even fired up the car yet!

[@cameronludwig5285]

What about the alternator pigtail. Does that not come with the holly terminator x? And if no what is the solution? I'm running truck alternator. Think originally was a 2 wire.

[@Olds_Pwr]

Very informative video and I have learned a lot but I will have to say that there are no 326 cubic inch LS engines, there is a 325 though.

[@kolemieux]

Tremendous Video - Great work and heading this way ASAP

[@alexanderknight7793]

I'm going to be doing a 5.3 swap on my Hyundai Genesis, something like this looks great for making the wiring aspect easier.

[@slowgoat6089]

Why put a LS in that? 🤣

[@alexanderknight7793]

@@slowgoat6089 Why put a LS3 418 in a Genesis? Because its badass.

[@dannuccio5842]

​@@alexanderknight7793 sounds like a waste of an LS 😂

[@alexanderknight7793]

@@dannuccio5842 sure bud, kick rocks.

[@alexanderknight7793]

@@dannuccio5842 let me see the raggedy pos you have one in😂😂

[@hulkmadddhernandez6113]

Awesome details Holley!! You and matt from sloppy make Ls a great swap platform! 2020 is gonna be a great year

[@HolleyPerformance]

Thanks Hulk, we appreciate it!

[@cliftonbig66]

How great was your 2020

[@Tokenutha]

@@cliftonbig66 haha that comment aged well didn’t it

[@GlobalMediaInc]

Sloppy Mechanics Sent Me Here!

[@hotshotdain4475]

Maybe I missed it so does it come with accessories harness like alternator , starter , transmission etc or do you have to buy any of that separate ?

[@877SnagaDJ]

Never a response?

[@tylerseabook9423]

It’s all separate because the $3000 you spend on it for some reason they don’t think you should get the basics with it seeing as it probably cost them $50 to make one of these

[@joaquinmata5513]

@@tylerseabook9423 3k ?I just looked and it’s 1200$ ?

[@usernotfound1423]

This is such a great video! Omg! You guys helped out a ton

[@STEEZO]

really great video, I do plan on using this setup

[@danielward8649]

Great video, that made my mind up on what I'm doing for my swap lol

[@let_it_ride9216]

The difference between x and regular terminator is just trans tuning Option and drive by wire correct?

[@selfmaderj4022]

cant wait to purchase mines

[@masmas6846]

What are you using for manifold air temp sensor? LS Engines have built-in air temp sensors into the MAF sensor... How are you using these MAT sensors?

[@HolleyPerformance]

this kit comes with a plug for manifold air temp. it can be installed in the intake tube or in the manifold.

[@gasratzcustoms]

We are looking to install this on our next project. !!!!!!

[@ByrdAK47]

For the Elgin Sloppy Stage 2 what should you select the cam duration to? Below 235?

[@Mondo3478]

Is it possible to use this and maintain use of the stock gauges?

[@dead_cyrious1876]

Which one would I use for an ls4?

[@chrishansen7004]

Will Holley ever have support for the newer transmissions like the 6/8/10L90 transmissions on gen 3/4 motors? I would pick up the terminator in a heartbeat for my project if I could do so. I'm very sick of getting gapped by fords just because the immense advantage having 10 gears has. these 10 speed transmissions are a whole different driving experience.

[@danielworks123]

6 and 8 speeds are junk and 10 speeds all you hear about is them always searching for gears

[@jrwstl02]

@@danielworks123yes, exactly. Fast cars run 2 speeds, and the fastest cars (top fuel) run 1 speed.

[@hpjunke]

It’s a good time to be alive ... 🤙🏼

[@ze_german2921]

Will it support A/C system like a Vintage Air? I know when the compressor comes on the Idle increases? Also can my Terminator Max 24 tooth be upgraded to DBW/54tooth down the road without buying an entire new kit?

[@JoseCruz-qf6ui]

Is the iac position value adjusted with the engine on?

[@georgem.6136]

Very good overview! I was curious do you need to run a relay for the coils? I know i have seen that discussed.

[@james_gordon16]

Really helpful! Saved video for when my buddy and I start the swap into his G Body, then my G body lol. What I am curious about is how do run the lighting system? And the radio etc. Do I just run the harness as usual then run power to the factory fuse panel? And run everything else off that? My car is gonna be strictly track (I think) but his is for the street. The fuse panel should be fine to run that stuff on its own correct or do I need to run the Holley to it somehow? Thanks! If there’s no reply in a week or so I’ll probably send you guys an email. Thanks.

[@johnhamilton6205]

Can an aftermarket alarm/remote starter be installed with this system?

[@Jonesz24]

Where does the O2 sensor plug in at ??? Did I miss that ?

[@mikeyacosta4757]

Do these have an OBD2 reader?

[@havocracing6019]

Could you help me with a twin turbo startup. Decaped flex fuel injectors like 70lb/hr it will start now but shuts off seems like it's real fat

[@chrissena3050]

Great video of. Was wondering how the Terminator X compares to the HP system?

[@Bodeesafa]

Legit video and awesome product. Need to get one...

[@HolleyPerformance]

Yes you do

[@PeterHatch-mx7zc]

Have a lq9 t 400 gear vender in my 1974 c20 .have not done wiring will it work on my project

[@rogue_silverado9133]

I have a 2012 Silverado that's not swapped, it's using stock ecu, can I install this as a upgrade, I like the auto learning aspect and can't find any info other than ls swapping older vehicles

[@robmespeedy]

I want this. Seems user friendly

[@nameless875]

HOLLEY I need help 😫 handheld just flashes white just like in this video when he powers on but mine keeps flashing can't get it to do anything else but flicker the white screen.

[@fionakinsella9750]

hi my name is brendan I an from Ireland I bought a z28 LS conversion beautiful job done, car was starting but now will not start, its says it has cleared all the system I was woundering if you could help me please. many thanks

[@thomasfortin8078]

Looking for part numbers for the Holley ultra low ram intake fuel rail hardware. Fuel line crossover etc. running the xmax kit with fuel transducer. An -8 feed and an -6 return. Looking to do the same as shown here.

[@dbaineboy6974]

So is that 4input output harness how I get analog gauges to work?

[@lsit7240]

Great video! I want to run the 7" screen (553-106) . Can I go through the wizard settings on that screen or do I need the hand held 3.5 screen as well??

[@RedWidowAdventures]

Hey I'm wondering that same thing! 🤔

[@FatDan.]

I know holley doesn’t respond but does anyone know when entering the cam specs is that advertised or at .50

[@ben185814]

Is this terminator is compatible with ac compressor for 87 R10 ls swap?

[@crownvalleytrans]

What's the make, model and size of the rubber bulkhead pass through grommet next to the ecu?

[@RaceMentally]

Why did you delete the knock sensors? Just bought the kit and would like to know. Thanks!!!!!

[@HolleyPerformance]

Knock sensors are very sensitive and take a lot of time to calibrate properly. It isn't usually beneficial to spend the time and effort to use them on an engine with an aftermarket cam, etc.

[@RaceMentally]

Holley were installing it on a sand car this weekend. So hopefully all goes well. Thanks for the response. I hope it all plugs in and fires off :)))

[@hashgirl1717]

If you have a Holley x max and it didn’t come with the handheld can you buy that and add it in or no?

[@CQBWarfighter]

Can’t wait to get terminator con my rig

[@crfrider2005]

If i have a bone stock ls1 throttle body to pan and a t56 can i flash the base map on and essentially need zero tuning?

[@sbccoupe]

You put the MAT into the intake? I put mine into the middle of the cold air pipe between the filter and throttle body, Is this bad? 08 ls3 with 550-905 box

[@travisjalbert1542]

Will this control a electronic transmission?

[@martygrajeda3457]

Can you run a T-56 transmission?

[@ryanescourse]

Can this read the speed sensor for a tremec manual trans? I only see the auto option

[@adrianlaverick8040]

Will this control VVT?

[@trentdawg2832]

Does the tach give off a 4cyl signal? Or do I have to pull my dash apart again and set the tach to something different??

[@w41duvernay]

looking to do an 06 ls4 swap in a 88 fiero getrag 5spd spd , and eliminating the knock sensors. What Terminator x and wiring harness would I be looking at?

[@chancecolwell3736]

So all that will plug into a ls9 without any problems

[@Thatshitdead]

Do I need a lab top to turn or is it self learning

[@irvingbar4569]

Do you still need to run a fuel filter regulator 58psi

[@miguelg3537]

Fuel injection only ?

[@hiteracing1489]

So what's the deal if everything is done correctly and when time so start it just crank and backfiring

[@Oli-jw2hh]

Clear as day!!

[@MOY5462]

I’m looking to buy a kit motor is 6.0 gen 3 from a van running a 4l60e. I want it drive by cable what kit do i buy?

[@POliver8888]

Can you tune more than one table at a time? Or do you have to save then cycle key? I’ve seen a KZbin video of a car being time where you can make multiple/live changes and it was really nice.

[@kannan4283]

How would you get it to work with a manual transmission

[@tylerseabook9423]

🤦‍♂️ you buy the harness that has no trans controller

[@jonathonsaavedra843]

Im looking to run this system on an ls swap, ill also be running water/meth injection, the w/m injection has a failsafe ill be installing that drops boost and timing if it notices a problem in w/m flow, how do i get this to work with this system if this already controls boost and timing

[@williamfranco9771]

can any one help with red light on #6 on terminator x changed crank and cam sensors as to holley tech instructions still no change

[@db2alex746]

Can I run the red wire that needs power when cranking off my fuse box with a fuse tapper ?

[@ivegonemad]

Can I still use my haltech branded racepak dash?

[@game_tight7318]

Do you still need the stock ecu when using this

[@tylerseabook9423]

🤦‍♂️ what 🤦‍♂️ clearly shows the Holley ecu

[@jrocha383ws6]

Hey what about AC controls and electric cooling fans signals?

[@HolleyPerformance]

It'll do all of that!

[@russrocket2883]

I have a stock map sensor on truck intake, do I use that or do I use the ecm 1 bar map sensor and hook up a line to intake?

[@Restructmusic]

I am having a problem with timing dropping to 0 as soon as i put the truck in drive and it pings when trying to move the vehicle. Any ideas on this?

[@OldGreggTTV]

Very curious do I need the factory ECM? I want to LS LQ9 6.0 Swap my Blazer never done a LS Swap before but wanted a basic clean set up instead of having a wiring nightmare so does this need the ECM sense it controls the motor or do I still have to base the ECM?

[@vava5427]

The harness already comes with their ecm

[@savagenomore]

wish it had an option for the 6l90 transmission

[@vagabond3045]

Hey I need the white pointer and the bracket to secure the handheld are there part numbers for those

[@HolleyPerformance]

Give our tech department a call and see if they can send one out. Those aren't sold as individual items, they come with the kit. 8666-464-6553

[@raheenfrasier5227]

Great video

[@joelrushin4363]

If wanting do a swap with a 07 4.6 mustang and trans is there an adapter for trans? Was thinking using terminator x stealth with trans controller.

[@jesusrivas2760]

Can I set up new tps from dash monitor? If so how?

[@hobotechMASTER]

is there an adapter harness or patch harness of some sort so i could use my existing ls1 harness to plug into terminator x? the reason being is that my current harness is already integrated with my body/chassis harness

[@slowgoat6089]

Did you figure it out?

[@TheNote408]

Gonna do a foxbody install?

[@HolleyPerformance]

It's on the list! -Keith

[@WellOiledGarage]

Is there any way to add DBW to the standard 24x LS Terminator X or would I have to sell it and buy a NEW Terminator X Max?

[@jefferycheek5914]

Does this system not use a MAF?

[@tangerine5781]

Is there any connection to the alternator?

[@tylerseabook9423]

Nope. $3000 for a bunch of wires and a little ECU but they couldn’t add in the alternator wiring. It’s a joke. I’m in the middle of it right now and starting to regret it.

[@randyrowe3097]

I was about to order The Terminator MAX for my 5.3 truck motor with 4160e. I want to utilize drive by cable and I'm confused which one I need. I do know it's a 24 tooth. Also, when I smoke this 60e, I will upgrade to an 80e. Do you just have add on plug to keep the same controller?

[@HolleyPerformance]

Hey, Randy. You'll need a Terminator X Max kit with transmission control. Just select your crank sensor (24x or 58x) and what injector connector you'll need. 4L60 and 4L80 use the same transmission control harness.

[@randyrowe3097]

@@HolleyPerformance Thanks! I just ordered it.

[@davidleonard7696]

Will it work on a 4l65e

[@cesarconh895]

Excelente video

[@richmondstgarage7147]

Where can I put my injectors on the software? I have siemens deka 80s and they're not an option

[@nosnerd1967]

EXCELLENT VIDEO

[@95turbostang21]

Are you guys going to do a video covering Ford Foxbody install I'm having a issue with my IAC plug Holley harness has 4 wires for iac and Foxbody iac has 2 wires so I guess I'm losing a output not to mention Holley dual boost control valve uses up 2.