1UZ V8 Swap Gets Spitronics Stand Alone ECU and Harness! Coil on Plug Conversion 

Next up I will deep dive into the new harness, show you guys the wiring, the tuning, what sensors are required, everything I can! The truck was rushed out of shop to make room for Max! It was done just enough to move it, nowhere near complete.

That is actually one of my custom Spitronics ECU / loom kits. Awesome to see it halfway around the world going into a car.

Excellent vid, highly informative even for a numpty like me ... I have a Soarer V8 (UZZ31) and the idea of swapping to a standalone ECU appeals to me as I've already ahd to replace one ECO due to caps leaking ... many thx for all the extra info on this vid ... top work

Excited to see how this works out just got my ecu back from Relentless Motorsport a few months back and seam to be very happy.

The stand alone clears a lot of space under that hood. Nice job.

Max is there?! Watch out, he may have another "Maxident"! I love your build! Keep it up :)

Spitronics the way to go 👌greetings from Mosselbay

Fuel injectors status will always be a notable 🤙

Any chance on getting a video or a link on howl to build the remaining part Of the harness needed.

Great mod! This opens up a lot of potential 😈

I need some more instructions for the starter harness u made 😅 idk what u do but I need to the same thing

Very informative and to the point videos! Couldn't find the info on the bell housing/adapter for the r150 to uz engines you used. I've swapped a 1kz diesel in my truck but looking to do a v8 in my 4runner.

Just watched BuildsNotProjects do this on his pickup a couple weeks ago. I'll be interested to hear your long term take on this mod.

The heart of a vw now

Is there a good reason why you went Audi r8 coils and not others? About to do this and your advice is much appreciated!!

Do you have a link to the spitronic harness and cop you used

What year Audi R8 coil packs are those

Got a 81 Corolla wagon what do i need to make the complete swap. Will I need the cluster from the ls400 and what about the rear diff would I have to use the one from the lex?

I got a question, can a 36-2 crank wheel from a VVTi engine be used on a non-VVTi engine so I can run batch?

Could this have E throttle? and are the ignitors on the coils or built into the ECU?

Can u provide link to coils I’m doing exact same setul

Gud machine I like it

What about putting a 1uz in a first gen tundra.

I ran megasquirt on both of the ones I did. One stock ignition the other Prius coil on plug.

Nicely done! Should see some real power gains from this. One day I will go full standalone on my 1uz pickup. Where did you source your setup from?

This is gonna sound kinda dumb it I’m gonna ask anyway, is there a way to switch to hydraulic lifters for the engine?

I know it's a little late, but you were complaining about your idle being different every time you start the engine. Thats probably because of how it was wired up. On the original 1uz wiring harness, the IAC valve (and a few other components) is powered by the main relay circuit. On your truck, the main relay is controlled by the ignition switch, but on the Lexus, the ECU had control of it through the MREL output from the ECU. The ECU would keep the main relay on for a few seconds after the engine was turned off to reset the IAC valve to a starting position. You probably did not Wire that properly, so your IAC would be left in a random position every time you turned off your engine.(Your IAC valve could also be sticky... you could try servicing it.) There is no way to plug and play the 1uz and have it properly wired, in a pickup/4runner of that generation. You have to make some small adjustments to the stock chassis wiring for it to be correct. 1) disconnect the ignition switch from the main relay wire and connect the ignition switch to the ignition power terminal on the ecu, 2) connect the MREL terminal on the ECU to the main relay to activate it. 3) wire the Circuit Opening Relay through a safety device. (Unrelated to the idle problem... this is for safety. This is usually hard wired on 1uz swaps, which poses significant risk in the event of a crash. This circuit is supposed to shut off the fuel pump if the engine stalls. This prevents fule being pumped out of the tank if the fule line is severed after a crash. Normally this is controlled by a switch in the Vane Airflow Meter, which, of course, the 1uz doesn't have. At very least, this should be wired through an inertia switch. Better yet, a module that looks for tach or ignition signals and turns off the COR when the signal stops.)

Amazing, i am wanting to do the 1uz swap into ny 92 landcruiser. What did you do for Speedo drive? Is it possible to still use the original dash?

My ecu is not supplying power to coils....please help

DG, I plan on buying a 96 LS400 tomorrow. I take it that this kit will work on it? Or is there a different kit for an automatic transmission? I'll do some more research as well.

Very nice. I also use Spitronics ecu on my 1uz, Saturn Advanced. Great power and good fuel consumption. Not sure if your ecu is wired through the narrow band sensor. Mine was wired through a wideband afr gauge, using the analog output. Can not remember what value I put in for target afrs and lambda control but it makes it sip fuel and you can monitor your afr values while driving. Also adjusting the maps makes it a breeze. I wired in an intake air temp sender to pull timing on hotter days. As Spitronics does not have a knock sensor, the iat sensor pulls a bit of timing on hotter days to avaid pinging. I run the old dizzy cap setup. Also going to do a CoilOnPlug conversion in the future. It was my understanding 1 of the cam position sensors was needed. Good luck and keep it up

Part number for the ecu please

Hey can you send me a tune you have on the truck ? Please

Do you have links to all the items you used? I have a 92 1UZ with a MAU-5 Trans I'm making am adapter plate for. Wondering if I should get the kit but trying to budget. How much did the R8 coils run you

What made you choose that specific standalone kit?

Ive been considering buying this ecu for awhile. Now it seems like i cant find them on ebay. Have they stopped making them?

Can you provide a link to Max channel.

i’m doing a 1uz swap into a jeep xj would you recommend doing this mod before installing it?? i’m also doing a m90 supercharger

Updates on the Spitronic ecu 11 month later ?

Your idle control was functioning correctly. You wired the swap wrong. In factory form the idle control stays on after shutdown and moves in a full sweep so it can reset and be in the correct position for the next startup. Your must have been off on shutdown making the next startup wherever it picked up from.

Are the igniters no longer required with this swap?

What did you do with the old harness?

what's the exact ecu and harness that he use

How much was kit and coils ?

Hope that solves all your weird quirks.

Is it user tuneable

👍👊

co$t for harness and ECU

Land cruiser? 🤨🧐🧐

Bro can you sell me those routes

Did someone say Land Cruiser??

I’ll buy your old harness

So horny for a v8 swap in my 99ltd 4Runner