Myth - Stock 1uz ECU can't be used on a swap. Myth - Stock ECU has to be tricked in a manual.
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- I hear this all the time. Lets discuss the truth and a few other things as well.
The Cartune Company (2003) Ltd in New Zealand does 1uz and 3uz conversions / parts and wiring. We have been working on UZ Toyota V8 engines since 2004 when we did our own Hiace van to transport dirtbikes around NZ. Since then we have swapped to doing mainly just Lexus V8 work from a family owned farm hidden away in our paradise , surrounded by the NZ native bush. We sell parts and simple to follow wiring instructions for the 1uzfe engines. We are also a LINK ecu dealer so can assist with parts and Information for the LINK. For enquiries email info@thecartunecompany.co.nz Take Care. Kelvin
My new favorite channel, finally a likeminded enthusiast sharing this information
Thanks for the compliment. Cheers Kelvin.
Do you think I could swap a 1uz in a usa 1994 ford ranger?
I just wanted to tell you, as an Auto Sparky in NZ, whenever I get asked about 1UZ I tell them to go and find you. I didn't realise you were on TH-cam! I have just purchased myself an MX83 Cressida and have decided to put a 1UZ in it to replace the 7M. So I am sure I'll be talking soon!
Thanks. I found out a few businesses are directing guys my way. Where are you based? Cheers Kelvin
You are a guru! Cheers for making these vids mate :)
Hello Brendan. Thanks heaps for the compliment. Cheers Kelvin
awesome explanation - I subbed, looking forward to more video's ;)
Glad you have you aboard. Thanks for the compliment. Cheers Kelvin.
Really appreciate all the Videos mate!
We've done a few 1UZ swaps here in the U.S. Two with 1st gen motors, and 1 with a 2nd gen non-VVTi engine. The first gen swaps were simple enough, because the computers don't care about about the missing automatic and the check engine light stays off. The 2nd gen swap is a bit annoying though. The engine runs great, but the check engine light is permanently on. We wired up the OBD-2 port, and there's always ~7 codes or so for the missing automatic. It's not the end of the world since the engine runs well, but it would be nice to have a check engine light that lights up when there's actually a problem with the motor.
Not sure if you have any idea about that? From what I understand, the U.S.-spec 2nd Gen OBD2 1UZ ECUs tend to be very picky about the automatic being there or not.
Hello. Im already onto it. I've only seen a few obd2 usdm spec ecus (maybe 20-25) and have one coming for some testing and I'm thinking I can apply some vvti tricks to it to solve the issues. Its on my list for 2020. Cheers Kelvin
Maybe I know the origin of this myth. My ECU turnded out to have leaking capacitors. I then found just an older one ECU that I had to rewire because it had paired injectors. The MAF sonsor is also different. All that trouble made me to use an aftermarket ECU.
The stock ecu is easy to deal with when the correct info is available but I hear lots of similar stories. Cheers Kelvin
If i use stock automatic transmission, its fine with stock ecu ?
Well Toyota had transmission running fine with stock ecu so provided its wired correctly it will work well. Cheers Kelvin
Hello i have a running but wrecked 1992 sc400, and a 1995 sc400 I paid a guy back in highschool to put a mega squirt in but he took my money and left my car butchered, but im putting the 1992 wiring harness in the 1995 are they plug and play for the most part with the sensors I know so far I’m going to have to change intakes and throttle bodies, any knowledge is appreciated
im doing a manual swap on a 2UZ non vvti, are you saying dont wire it to park to start, and not to drive to run? but to do neutral? it looks like the cruise control circuit needs a drive signal from the ECU tho
Hey I watched a LOT of your videos. Can you make the wire loom for a 1994 Lexus sc400 non vvti.
where did you get the tool for the connectors?
I have a project a 1uz motor primers jenerasion noce how to power the computer in the past I already broke one I need your help vibe on aruba island here mm or work on that motor thanks
Thanks for the info it was a great help. Please get a chess Mount for the camera the left and right with the camera is hurting my head when concentrating on something
I have a chest mount and will have a try with it at some point. Cheers Kelvin
Where can I buy the wire and computer much you sell running engine on stand
What’s the main wires to on the ECU for this ?
Can't express how thankful I am for this information right now !
Cool as. Glad to help
I swapped a 1uzfe into a Suzuki samurai, and it’s Manuel. It has stock everything nothing has changed in terms of ECU
Excellent. It should go well in a small chassis.
Quick question I’m having an issue with my ls400 where shortly after I start my car it just cuts off I Checked fuel pressure it was at 40 psi and it can’t be spark because it fires up no hesitation it just won’t fire all the way up and run have you ever had this issue?
I'd start by checking codes. Its very common issue with codes 14 or 15 or the obd2 equivalent which are ignition faults. I have videos. Cheers Kelvin
Hi...vary good video....I'm restoring a 94 ls400 with air suspension... 1st I had to replace the starter 2nd the radio with the amp premium system. Replace all the lights for leds . Replace all the original seats because they were cut ( Slice) look like Freddy coger lived in it.... The only thing will be missing is that mod with the manual transmission
These older cars can need a bit done to make them good again. They still drive so well once sorted though. Just did a powersteer rack and radio on a UCF10 LS400. And suspension arms. So nice now though. Cheers
You are a very intelligent man. You are very talented and from the way you speak and explain things. Cheer mate have a good one.
Thanks
Typical no can doo ers hahaha nice one
I just purchased a 1UZ-swapped Lexus IS200 (XE10 chassis). Car used to be manual with the J160 and it was swapped with the stock LS400 auto. 1st gen engine.
I would like to put the J160 back on using a swap kit. If I understood you correctly, for this version of engine/ECU, I only need to remove the automatic gearbox wiring and everything will work fine?
Hello from Australia, Boss thanks a lot for sharing this information Would it be hard to swap 1UZFE engine on to a 1995 W124 Mercedes E320 and as you mentioned in the video would the ECU on the 1UZFE work on my Mercedes W124 thanks and have good day.
Don't forget to mention that alot of these ECU are 20+ years old now and some suffer from leaking capacitors. Causing all sorts of problems. Seen a few personally and the 1uz I used in my rig suffered from this. This is the reason I decided to bin mine and upgrade to a link. But any excuse was a good one hahaha.
Great video as always love all the 1uz content
Be good if you do a video on upgrading cams. I'm stuck on what specs to get for the boosted engine I'll be building next
Hello Ross. Yep, giving the stock ecu a service is just a maintenance item to me these days. I try to flick new caps in before they fail and do serious damage inside. Cheers
@@CartuneNZ oh nice one would be awesome to see how you do the cap replacement if ya do a video.
Underrated channel
Haha fuck om glad I found this channel man, im looking at manual swapping my 92 soarer, then eventually turboing it .
Cool. Did you find the 1uz turbo soarer video? Cheers Kelvin
@@CartuneNZ yeah I seen the 470 at the wheels build you wer the passenger in, given me motivation thats for sure, I only want around 400 at the wheels , and manual. In the most cost effective and reliable way. And ur channels fucking awesome👌
I have swP 1uzfe and Mazda rx7 transmission
Very cool.
Killer video but I need details on those headers!!! Can I get them here in the states?
I have an 82 hilux/pickup with a first gen 1uz. It’s a blast but I bought it as someone’s project and your videos have really helped me get a mental handle on the mess of wiring the previous owner had going on… 🤯
Hi, how difficult is to have the original auto transmission running on 1/3 uz?
Some says that needs a tcm and others that ecm controls them 🤷♂️
Generally its very easy to make the transmission work correctly. Most models have a combined ecu / tcu unit keeping it straightforward. Cheers Kelvin
@@CartuneNZ thanks so much!!
is wiring a similar cse with 3uz? Am planning on swaping my gq
Yes, I have a few 3uz wiring videos too, using the stock ecu and I sell wiring instructions for them.
Sir do you have "1FZ-FE AT" ecu pinout diagram. If u hav thn help me.
Yes, however it's not one I sell in my instructions due to poor demand. I recommend getting an FSM with the wiring sections.
Ok,i'll pay for it. How much price of wiring diagram.
It is monster
but I would like to get it running on the engine stand to play with Cam timing so I can see how much overlap I can get away with at idle. I love the sound!
Did you do anything on 2jz ge rear o2 sensor wires are mixed in with the dash I’m clueless lol
Please tell sir how to start toyota landcruiser car without immobilizer system from 1999-2003 model.
Delete immo, start engine.
Please tell me the processing delete immo.
@shihabuddin8495 with out exact model details this may be the option. th-cam.com/video/L5LlUv_fHgA/w-d-xo.htmlsi=I7_u5wc_zPY9DTXy
Hey I need all connectors plugs to the transmission for 1uz engine please help me out
Best send my team an email a listed in the description. Cheers Kelvin
@@CartuneNZ ok thanks
i see myself doing this in the future. But I will be going full Megasquirt for the twin turbos.
Too bad it's a obd1 as you cannot get live data from the factory ECU to copy the timing table.
I can get live data from the stock ecu and could replicate the timing map with a dyno and some simple test gear along with my scantool. Cheers
I'm having issues with my 94 1uz manual Soarer idle dropping after it has been driven for about a mile. The idle will drop them the car turns off. After that I start it back up and it idols fine until I drive it another mile. As long as I keep my foot on the accelerator when I'm coming to a stop it won't shut off on me. Is that easy you related or should I adjust the idle?
Generally this issue is due to a run done idle control system, or other engine running fault which causes poor idle or its incorrectly wired from doing the manual swap. Guys tend to misunderstand the relationship between the nss and nsw in the vehicle and the ecu. When I do a manual swap I always leave the factory idle settings. Sort the fault properly is my recommendation
@@CartuneNZ Thank you so much for the reply. I am running my factory VCU and harness after the manual swap. The only exception in my wiring was to jump the neutral safety switch via fusible link. Would you mind giving me a little bit more input on the process of eliminating this issue. Or if you have a video that deals with this issue I would gladly watch it. I've tried to go through about it every video that you've had lol
@da1outsida35 when I do a video on this specific topic it will become part of my paid videos as the information is covered in my wiring instructions which I sell.
@@CartuneNZ ok no worries.. I'll gladly pay for this information sir. I know nothing in life is free. So please let me know if I can pay you for the information directly or I'll pay for a video.
Dam you know your shit, looking at a supra with 6spd and getting a pre 94 1uz then turbo
Very cool. I look forwars to seeing it happen. Cheers Kelvin.
@@CartuneNZ hopefully it maybe a job for you, where are you located
Hello. Im in the South Waikato. Google finds me. If it looks like the middle of the bush then its the correct spot.
Cheers Kelvin
@@CartuneNZ no shit same here, that makes things a whole lot easier, thanks Kel
I think I missed a bit!! What is the best/easiest way to have vvti running with a manual?
Cheers
Hello. The VVti can be wired like any other. When using manual I use a extra box to replace the signals from the transmission that without it will be at reduced power. More info on this coming up. Cheers Kelvin
@@CartuneNZ hi kelvin, do you have the video for that box? I have a 1uz that im going to do manual but i want to use the stock ecu
Yes I have a video which is part of my paid instructions so not public release. Cheers Kelvin
Ofc the 1us is balanced well enough to start fine on a stand lmaoo
Way over my head
But cool that you understand it!🙌
Spitronics + lume from SA problem solved
There's no problem running stock ecu anyway. I also have spits videos along with many other aftermarket ecu videos.
👍
I have a 1uz from an 93 sc400 I'm putting in a 90 toyota supra going to use the w58 manual transmission. Do you have instructions to wire using factory ecu? If so how do I purchase?
Yes I do. We sell heaps of soarer instructions. Email info@thecartunecompany.co.nz and my PA will sort it. Please include ecu number and if you have model number for supra I may have additional info too. Cheers Kelvin
Awesome! I just emailed you about my conversion in my 85 4runner. Looking forward to hearing from you!
Did he ever respond???
Is that the same for 1uz vvti ? Can i use stock ecu when swapping ? How can i disable immobilizer ? And can i use manual trans ?
Yes , all the same for the 1uz vvti and the 3uz. I can use , and do use the stock ecu lots. Immo delete is a service which I provide. I often use the stock ecu with manual transmission. Cheers Kelvin
Hey there sir.me again all the way from south africa.cape town.just wanna know do u advise to bore the block of the 1uz when i overhaul the engine.whats ur advise on rebuilds.
Craig Solomon If you’re using stock pistons just hone the bores and clean the head surfaces
Hi again, wondering what ecu you'd recommend for a stock 1uz vvti with a 5 speed 3l d4d manual gearbox. The swap was done on my van but at the time i was not informed on what exactly was done to make everything run (2016-2017). Of all my issues my main worry was that there is no obd port where i could have access to read error codes. Looked down at the exhaust and found out that there were no oxygen sensors connected as well. The car runs but i feel it's really low on power besides the bad ratio of the van i put it in. Have never dynoed it. It starts after 1 kick and doesn't do anything erratic.
So my questions include
Standalone ECU you recommend to prepare for forced induction.
How i could read codes on the ecu because i believe there are issues with power.
Best ratio you'd recommend as my ratio is too short (4.55) and i was thinking of a 3.89 ratio.
Thanks again.
I'm in Southern Africa In Botswana by the way.
And if possible. A solution on how to get the vvti running?
Cheapest is the Stock 1uz VVti ecu with a transmission emulator. Easy to sort and work well. Cheers Kelvin
Can a 1uz fe ecu start up a 3uz fe engine?
Yes. Here's a video of it. th-cam.com/video/xB1S-6nlWMU/w-d-xo.html
@@CartuneNZ Thanks Sir
Hi thanks for the video. Great 👍
Can this be done for 2zz ge as well
yes, Stock ecu can be used on most toyota engine makes and models, cheers Kelvin
So if I use an 1UZ-FE attached to a TH400 automatic transmission, I should remove the transmission wires too??
Also, is there a place where all of this is written down, like which cables to remove, etc. Using an early 90 engine. The one with the thicker rods.
Thanks in advance.
When Im doing a mechanic transmission I normally remove all the transmission wires. Ive done the list for wire removal with my later uz wiring instructions however its part of my update list for the early ecus. Its not hard. All the wires going to the transmission get removed. Same process shown in some of my videos. Cheers Kelvin.
@@CartuneNZ alright, so just get rid of all the transmission wires and I'm good to go? Thanks for the help
Still easily doable for something you want to run with no catalytic converters and a cold air intake too?
I figure you will still need the loom for the O2 sensors or else the air fuel ratio won't adjust itself for the environment?
Yeah I have been looking at 1uz swapping an old car that still has a carburetor
Absolutely. Most of our swaps are exacty that , no converters and a cold air intake. Cheers Kelvin
@@CartuneNZ Any rewiring of the ECU needed to compensate for the high flow rate, or will it auto adjust accordingly?
heard two things coming through at once, freaked out for a moment, closed down tabs, come to the comments.. I'm not alone..
I think Ive got it. Hopefully should be gone in a few hours. Still learning this editing stuff. Cheers
I wish to bolt one of these into my isuzu bighorn and keep the auto in the truck.
The automatic transmission wiring would have to be used for the isuzu transmission?
Or would you need a completely different system?
Some isuzu use an aisan based transmission making uz swap quite straightforward. Wiring needs to suit whatever transmission is chosen and be completed correctly. Cheers Kelvin
@@CartuneNZ thanks, I was looking a 3uzfe motor using gen 1 1uzfe bell housing. Hopefully mod cert will not be a problem
Whats the model in a 1994 sc400
Sorry I dont understand, 94 sc400 is a uzz30.
CartuneNZ oh I mean a 92 sc400
Still a uzz30 in 92. There are sub models though.
Will a 3uz auto ecu work on a 3uz manual or would it even start?
Yes, we flash the auto ecu to manual and they work awesome
Hi, I’m thinking of purchasing a 1uzfe with the auto trans and ecu. Technically, if everything is there I would be able to drop it into my 69 Volvo and wire the ignition and current to the ecu, right? Also, if I remove the wiring going from the ecu to the trans, this would allow me to convert the automatic trans into a manual automatic trans? Thank you
with the correct knowledge yes this is possible. Cheers Kelvin
@@CartuneNZ do you sell the wiring diagram for the stock ecu?
@@emmanuelrojas8520 I sell wiring instructions which include diagrams and 20 minutes of my time to help. Email in description. Cheers Kelvin
hi, i have a question about Ecu's. have you ever used a crown 131 auto ecu to control the autobox and used an after market ecu to control the engine (for a turbo charged application)
Never used the 131 ect on its own but have used plenty of the later ECU'S wired to control just the transmission with an aftermarket doing the engine. I have a video coming on this topic soon. Cheers Kelvin
CartuneNZ awesome news :) im looking at installing a sc400 engine and auto into a can and would like to turbo it at a later date and keep the auto. Can not wait for that video.
U mention instructions-how do we go about getting those?
I see you have found my email info@thecartunecompany.co.nz . Ill reply there. Cheers Kelvin
I am not sure if I got it right, but you're saying the 1st gen non vvti works all good with no gearbox wires at all? I have the exact engine and would like it manual. Great video!
Yes, any of the stock ecus work fine with a manual transmission provided the wiring is done correctly
@@CartuneNZ nice, just wondering does it allow abs and cruise control to work? Maybe even traction control?
@@Oxenan17 these systems are disabled when doing a swap. In stock car they work
Can the emissions system be tricked into not bring up error codes.where i live(the states) care alot about emissions
Absolutely. Different ecus require different things to be done to eliminate codes. I've just edited a video on physical egr removal however I used a non egr jdm ecu on that job to prevent codes. Its not released yet but can be found in the 425 ls400 playlist. Cheers Kelvin
The EGR looks to a thermistor to trick the egr code to go away wire it high resistance when egr vsv has no power (ground switched) but with the ecu egr vsv wired to a relay run a lower resistor simulating a hot thermister to the otherside of the relay that is all because in closed loop the ecu tunes from the O² sensors then you can block off the egr flow completely and keep egr codes clear, for removing cats the best thing to do is run the secondary O² sensors through sparkplug defoulers extended out of the direct exhaust stream but you can also use a high resistance diode tap the left and right primary O² sensors each with a diode then coil and resistor bridge network to drop the oxygen readings to give the car a good cat efficiency reading then those codes will go away also
Hi do you have any instruction for wire up 2uzfe lx 470 1998
Check this out. th-cam.com/video/iFOLbuGQYw8/w-d-xo.html Cheers Kelvin
and yes I do. Cheers
Where can I buy your instructions?
email is best. info@thecartunecompany.co.nz include your ecu number cheers kelvin
You talk too fast. slow down a little bit
This is one of my earlier videos. Hopefully you will find I'm slower in my newer stuff. Cheers Kelvin.
Thank you for this information, so lucky I found this
Glad it was helpful! Cheers Kelvin
Swapping in a manual trans in my 98 SC400. I’ve read Vvti’s require a bit more than the Non Vvti’s. From what I’ve read the NSS and the old auto solenoids needs to plugged in correct?
Just finished the video and saw you pulled everything out related to auto trans and traction control. Hopefully I can get it running with the old solenoids while a source another harness to dig into. Same theory applies to the vvti harness though? Just remove those wires? How would I go about rewriting the park/neutral switch?
Hello. This info I dont share publically as its part of my wiring instructions which I sell. Its all in there along with my help. Cheers Kelvin
@@CartuneNZ how much are you charging for basic wiring instructions for a gen1 (1991 i believe) 1uzfe ?
@@shawnwimberly9294 presently NZ$175 email info@thecartunecompany.co.nz cheers Kelvin
Seems like it's a popular opinion that the first generation 1uz isn't the best and to seek a newer model when possible. Is this true? Even when considering forced induction ( small turbo)?
Just wondering is it possible to extend some of the loom wires without any running issues on a 3uz?
Yes , provided every join is done correctly then some of the wires can be extended. Cheers
CartuneNZ thanks mate 👍
Used used
Sell them
how do i swap a 1991 1uz from a ls400 into a 1994 lexus ls400
Just like any other engine change. Swap long block, use 94 intake, wiring etc. Very easy.
CartuneNZ are any of the sensors different or anything? and i’m putting in a cd009 transmission are there a lot of issues that i’m going to run into
@@Tonka470 as I said, swap just the long block. Use the sensors presently on the 94. Then no issues when swapped correctly.
Sweet video
Glad you enjoyed it
Hey, I've had my ECU's capacitors all replaced and the ecu checked professionally. Everything seems to be working properly but the poor sc400 won't fire up. It doesn't seem to be getting feedback to tell it to fire. I've tested the igniters and they seem to fire the coils. Any help at where I should look at to sort this problem out.
Thanks
Adam
Hello Adam. Was the engine running before the ECU was repaired? Have you gone through the basics and checked ECU is powered up? Checked for spark and injectors working? Power to injectors and coils? Fuel pump working? Cheers Kelvin
@@CartuneNZ hey, I bought it as a project car so it coughed a bit when I bought it but not run.
I having check the ecu to see if it is powering up,
Is there a simple way to do that?
It is getting fuel to the injectors, I can smell it when cranking the engine.
I changed the fuel pump as it was ceased. The only way I can make the fuel pump work atm is to bridge the b+ and fp terminals.
The igniters only work by pulling the circuit up using a test light, by doing so as the engine is cranking I can get spark. It's like it isn't sending any feedback back to the ecu. Possibly crank sensors?
What's your thoughts.
Thanks
Adam
@@adamcampbell6832 my thoughts is I need to do the diagnostic videos I have on my list. To confirm ecu is powered up things like cel light should be on at key on. If ecu is powered up then checking crank sensor. I have a video for that test.
@@CartuneNZ I'll definitely check the vids and do the tests, when I get back home next week.
Thanks for the guidance
Hey, There doesn't seem to be a CEL light when turning the key on. The ecu is a 40/40/40 plugs. How do I know what wires to use to power it up?
All listings on trademe have gone?
Correct. Ive been on holiday so close all my auctions. I do this whenever I'm away for a bit then relist once Im back. Cheers.
@@CartuneNZ No worries at all, thanks
Any one have a guide on how to wire a stock loom?
Hello. Yes I sell a manual on how to wire any of the 1uz stock ecus. $150nzd. I require your ecu number. Email info@thecartunecompany.co.nz cheers Kelvin
@@CartuneNZI did earlier.
BTW its a 1992 Sc400 and the labels un-readable.
@@Max67zero ok. I get around 50 email a day so can take a while. Send photo of ecu as I can tell from photo. If its sc instructions cover both traction control and non traction control. Or just paypal $150nzd and ill flick the info back when im on my laptop. Cheers Kelvin .
I have a 1uz vvti with a non vvti auto box. Everyone tells me i have to get a vvti box. Is it true?
Sorry I dont have enough information about what you have or what you are trying to do. A 1uz vvti ecu if it was originally had a 5 speed trans wont manage a 4 speed. There was one model of vvti which had a 4 speed box. Provided you have the suitable electronics then it can be made to work. I really require more information to comment further.
@@CartuneNZsorry about the lack of info. I have a 1uz vvti with original ecu. The trans im running is a 4 speed of some sort ( I bought the vehicle like his) my problem is that the transmission doesn't change by itself coz the box isn't wired to the ecu. I have to change it manually from D1 to D2 to drive. Everyone says its because the trans im running isn't a vvti box.
Ok. Most 1uz VVti have a 5 speed so the ecu wont control the 4 speed trans. There was one model of VVti which had a 4x4 4 speed auto on it but super rear. Do you have 4 gears or three gears? One solution would be an aftermarket transmission controller. I have a vvti video coming which might interest you. I might even mention your issue. Cheers Kelvin
@@CartuneNZ thank you very much. Will wait to see the video. Regards Rusty
@@CartuneNZ I have 4 gears.
around the 5:40 mark there are two audio streams coming through...
Thanks. Ill have a look soon.
Question - If I swap a stock 1UZ and stock auto trans into another vehicle and transfer the COMPLETE stock harness as it was in the donor vehicle without removing any wires whatsoever, will the engine/trans function properly?
Absolutely. Provided everything is connected correctly it will all work as it was intended. Cheers