1uzfe ECUs. What stock ECU fits your engine. Differences. 1uz which ecu?

[@BobbyFigliola]

Excellent information....Kelvin, you have educated so many folks on these engines and ECU’s. Thank you Sir

[@CartuneNZ]

Thanks for the compliment. Cheers Kelvin

[@brian7940]

I have been going though your videos for the past month. Your weather of knowledge is great. Im in the US so I see my ls400 than anything. And look forward to some builds. I own a shop and do a ton of Toyota work. Your awesome. Keep up the good work.

[@CartuneNZ]

Thanks Brian.

[@yaboirico5221]

I have a 1995, 1996, and a 1997 UCF20 ECU and they all have different numbers and none of them matched any of the UCF20 non VVT-i USDM numbers you mentioned in the video lol Really shows how often they changed designs.

[@CartuneNZ]

Yep, there are lots of numbers. Some interchange and some dont so it gets to be fun working out which do and which dont

[@1uzfe]

You have no idea how much valuable information you’re giving us. Here in North America there is no information or parts for 1uz engines (mainly because of american LS engine and the toyota jz engines) 1uz engines are forgotten. As per Lextreme, they say the stock ECU of 1uz engines can handle up to 7 pounds of boost, however, users in the forum claim a different number. Any input on that?

[@CartuneNZ]

Hello Fedora. Glad you find my channel helpful. I avoid boost on stock ecu. There are several different ecus which are all mapped differently. Ive seen guys have success with boost on stock ecu but also seen heaps of guys have failures. I prefer to do it once , do it right so use aftermarket on every boosted setup I do. Cheers.

[@TheCuttz1984]

Good to see someone still into 1uz. I installed a g4+ Xtreme into my Cressida. Made a huge difference. Good video explaining the STD ecu tho.

[@CartuneNZ]

Hello Ross. Thanks for the compliment. The cressida looks great. I've got heaps coming on the Link ecu very soon as well. Cheers

[@TheCuttz1984]

@@CartuneNZ kzbin.info/www/bejne/o5_RlGWLn7qcla8 this is the link to the Dyno with STD engine with all the link if you are interested. Look forward to more content from you mate

[@CartuneNZ]

Looks like the cressida came up great. About what I would expect in power and torque. Looks smart. Cheers Kelvin

[@TheCuttz1984]

@@CartuneNZ thanks much more to come

[@kuzosuzi]

How hard is it for the g4 install?

[@ВячеславЧерных-о4ь]

Thanks Kelvin, you answered on my question. 👍

[@CartuneNZ]

Glad to help. Cheers Kelvin

[@jeremiedaniels813]

Great info! Sorry if I may have missed it but what is the difference between the 175000-411x number (pn 89661-50032)? Some end with, that I have seen, 4110 4111 or 4112. I suspect my capacitors are going bad (very random misfire, all new ignition). I want to see if it is indeed the ECU before I spend the money to have it reworked or maybe I need to keep chasing down something else. I put this engine in my 1990 4Runner about 5 years ago and had no issues at all until this.

[@CartuneNZ]

I only use the Toyota part numbers. 89661-50032 is early LS400 ecu. I see an ecu service as maintenance so never hesitate to have the ECU gone over. I cant comment on other numbers as I never use them, only the Toyota number. Cheers Kelvin

[@ZacClem]

thank you for all the info and videos. i do have a question for you is there any advantage to having a particular 1uz ecu for example one might have a little bit more power or better fuel economy.

[@CartuneNZ]

I prefer the Gen 2 ecu on the non vvti engines , in the VVti 1uz the 170 series crown make more power and the 3uz ecu is great as it can be reflashed. All have their purpose. I try to avoid the pre 94 ecus as they are getting pretty tired these days. Cheers Kelvin

[@andieexoxo1]

Hiii I have a 95 Ls400 Will a 96 LS400 ECU works in my car ? Please help, i appreciate any answers ! Thanks

[@SpaghettiAuto]

Will a 1992 Ls400 ecu work with a 1994 Ls400 engine harness

[@ethansmith8442]

Are there any tuning capabilities on the 93' sc400 ecu? Im keeping it NA and and want to go fbo (headers, exaust, intake). Im looking for a budget friendly ecu so I can get at least some sort of gains. Thanks for all the information!😃

[@CartuneNZ]

Early SC400 ecus were able to be tuned by TOMs however this is not really a great option these days. Best to fit a suitable aftermarket ecu. Cheers Kelvin

[@xxnickfifita891]

bro thank you for the lesson when im back in nz i am going to come and shake your hand my friend and have a couple drinks with you..... notes taken now to hunt for theright ecu

[@CartuneNZ]

Glad to help. Hopefully we can all travel at some time in the future. Cheers Kelvin

[@shedbuiltcars2999]

Bit off topic, what auto rebuild kit can you get a hold of, and engine mount kit to sut a surf, it is auto using the lexus 4spd box, no manual conversion

[@CartuneNZ]

Ive been making and selling surf engine mounts since 2005. Due to how busy I am we take the transmissions to another mate of mine these days who sorts the rebuilds. Cheers

[@shedbuiltcars2999]

@@CartuneNZ do you hve details, i just wanna do basic rebuild before i bolt it in. Nothing huge,but i do the same with engines too. Ne rings bearings gaskets eyc So a trans at minimum would be seals clutches etc. But finding a kit is painful. More than happy to pay, bothing in this world is free

[@rustypotatos]

What do you think about remanufactured ecus from company’s building them directly for your cars year.

[@CartuneNZ]

We don't get these sorts of things over here , so generally are repairing our used units to replace any ECU's from vehicles which are not able to be repaired themselves.

[@francojoubert5075]

Love the video's help a lot

[@SunBitSynergy]

is a stand alone harness or stripped down harness able to be done like the ls style harnesses with the factory fuse and relays changed to aftermarket?

[@mkIIIsupras]

He has other videos showing his wiring setups with his own relay blocks that he adds to the circuits.

[@CartuneNZ]

Hello Nicholas. Sure can. As mklllsupras said a 1uz loom can be wired like an ls swap loom. Ive got a few examples like the burnt hiace. Cheers Kelvin.

[@isaiahsaunders7009]

So let’s say you have a 89661-24430 can you use a 24431 in it’s place? Is the last number a revision?

[@CartuneNZ]

Yes, last number is a revision.

[@diszruptiveent3634]

Any differences in the wire harness for ls400 from sc400? Non vvti obd2.

[@CartuneNZ]

Yes, completely different configuration between them.

[@diszruptiveent3634]

@@CartuneNZ I can possibly make a new harness from both for my sc400

[@noisy_boi_fpv_3920]

Question please dr uz. For a ufc10 what would you say is best ecu from the whole range. Mine is the 26 16 22 26. 89671-50050. Are There any other know units that are better performing please. Just thinking. Cheers.

[@CartuneNZ]

The mapping on those first ones is very primitive, the next ucf10 is slightly better but still primitive. Best option is to stick with what you have but have it serviced. Or if you find a mines or toms enhanced version.

[@noisy_boi_fpv_3920]

@@CartuneNZ I’ve been searching for Mines for a long time I think unicorns maybe easier. Lol. Not heard of a toms

[@johnnychang7082]

Sir ask some questions ecu 89661-50102 ls400 …..won’t rev up like cut fuel cut?sir how the wiring diagram?

[@CartuneNZ]

I have wiring instructions for that ecu which I can sell you. Email [e-mail] cheers Kelvin

[@dxta7360]

"..bring it out and confused everybody else"? I won't get confused o!

[@CartuneNZ]

Im glad. Cheers Kelvin

[@alboiko]

Спасибо!

[@CartuneNZ]

Thanks for the compliment

[@jevinburza359]

My celsior ecu is 89661-50171 and I am looking at an 89661-50142 from a ls400 will it fit in my celsior?

[@CartuneNZ]

Sure it will fit. EGR gets turned off, and I'm pretty sure your hydro fan is fine with this setup but it would pay to check just in case. If you have air suspension there might be issues there.

[@jevinburza359]

@@CartuneNZ do you have anyway of figuring out the fan situation and is the egr important in this case and do you know of any other ecu that will fit my celsior with 89661-50171?

[@CartuneNZ]

@@jevinburza359 maybe I'll rephrase, the 142 is an egr ecu, so it will throw codes if there isn't an egr, as your celsior most likely doesnt have egr. For fan id get to operating temp and check it operates, which I think it should, but Im recommending checking.

[@jevinburza359]

@@CartuneNZ do you know of another ecu that will work with my fans and egr?

[@CartuneNZ]

@@jevinburza359 have you checked if your car has egr? As I said I'm pretty sure the fans wont be an issue but it pays to check. Im fine with swapping ecus from different numbers, I just confirm functions work otherwise we rebuild ecus most of the time

[@rickjames3034]

I have a uzz31 motor. '94 on the plug leads. aluminium AFM, billet fuel rails, All the signs of a big rod 1uzfe. Cracked it open and found small rods :( :(

[@CartuneNZ]

Chances are somewhere in it's 25 years of life the motor has been swapped for a gen 2. I have seen plenty of blended engines over the years. I have one in atm which I think will be like yours. Gen 1 manifold and management and gen2 block underneith. Thats the risk we take with secondhand parts. Are you planning some boost? cheers

[@rickjames3034]

@@CartuneNZ Pretty sure the motor hasnt been worked on or had manifolds swapped over or anything like that its completely stock JDM motor. my feeling is that its a very late '94 motor and perhaps was one of the last gen 1's they made before moving to gen2 and toyota just swapped the rods over early..? pistons are the same compression ratio as gen 1. Any rate, I swapped out the rods for fatties anyway. with some ARP rod bolts and OEM bearings ( sized correctly from journal markings on crank and conrods) Single turbo is planned for the future.

[@CartuneNZ]

@@rickjames3034 uzz30/31 can be mixed up so nothing much surprises me with them any more. Glad its sorted now. I look forward to some updates. Cheers.

[@francojoubert5075]

Hi there is there a way to contact you. Im in south Africa and struggling with my 1uzfe can you help me please.

[@CartuneNZ]

Sure is. There is an email at the end of every video which is [e-mail] Cheers Kelvin

[@francojoubert5075]

Thank you

[@ATodoGasRd]

Hi I need the model of the ECU for 1uz vvti 5 speed transmission thanks 🙏🏽

[@CartuneNZ]

Cool as, 1uz vvti ecus are towards the end of the video. Cheers

[@ATodoGasRd]

@@CartuneNZ yes I know the vvti ecus are at the end of the video but my English is no good and I need the models to buy on ebay cheers from Dominican republic 🇩🇴

[@CartuneNZ]

@@ATodoGasRd what is your primary language? Which model 1uz vvti do you have? Any chance of a loom number?

[@ATodoGasRd]

@@CartuneNZ My primary lenguage is Spanish I don't fine a loom number my 1uz vvti is the big coils I'm making swap in a Mercedes Benz c124 1991

[@CartuneNZ]

@@ATodoGasRd awesome. Spanish is on my list of subtitles for newer released videos. I can add subtitles to this one too if thats helpful. Is your engine a celsior or ls400 engine? Lexus or Toyota badge on the cover?

[@kobbyreagan5521]

Hello

[@kobbyreagan5521]

Please does the 97 1Uz have immobilizer?