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[Tuning] Change SMT to MT. Guide to action. - Toyota MR-S, 1.8 L, 2002

I matured, after almost a month I took the car with a new box, and after 3 months I left it at the service station.

Let's start from the beginning. The car was equipped with a sequential gearbox. You can find details about it on the main page of my car and in the logbook. In short, we have 2 pedals, but a mechanical box. Gear shifting and clutch release are handled by 2 additional devices: a hydraulic pump and an actuator. The gearshift knob has three positions: R - reverse, N - neutral, S - the actual gearshift mode itself (the handle to itself - the transfer up, from itself - down). There are also duplicate buttons on the steering wheel - plus on the bottom, minus on the top.

So this whole system was mercilessly buggy! In winter, it was necessary to warm it up for 15-20 minutes, otherwise the gears would not switch, and the box strove to fly into emergency mode. In the summer, with sharp turns on gas, the box also periodically fell out into emergency mode (as the scanner showed - there was a lack of pressure in the system), the benefit was treated simply by restarting the computer (drowning and starting the car again). And the most unpleasant thing was that there were mechanical jambs with a box computer (in addition to the main one, an additional Bosch computer was installed on the box). Contacts in it apparently cracked from our "roads", and the car simply did not release the clutch. It feels like you are riding a ceramic brace. This problem popped up 2 times. Actually, it was the main reason for changing the "smart" box to a simple mechanical one.

The beginning of the rework can be considered the purchase of a new box. Well, in the sense of the box is contractual, but did not want to leave the old one for three reasons. Firstly, there were tired syncs on the 2nd and 3rd, and secondly, there was an ordinary 5-speed gearbox, I wanted either 6th gear, or LSD, and thirdly, I didn't want to bother with reworking the box ( the shortcomings are small, but still necessary; for anyone interested, I will throw off a link to an American site) I bought a box in Vladik, not a 6-speed one, but with LSD. Something in the region of 2-3 weeks, she went to Novosibirsk. By the way, it should be noted that the box was from mrski, from ranks or pillars may not fit, the bell is different.

After the box arrived in the neighboring city of Krasnoyarsk, the purchase of the following spare parts was made (I will give a complete list of points at the end of the article):

1. Gear shift knobs.
2. Rope from handle to box.
3. Throttle valve (sure! I'll explain why later).
4. Clutch pedal assembly with clutch master cylinder.

I did not buy the slave cylinder, since it was already on the new box.

It all came. A week later I bought a second car in my family and put my MaRuSu on October 3rd at the service station. I thought we could do it in a week at most. As a result, I took it only after 2 months. In short ... it turned out as always))

Removing and installing the box is a simple matter. There were no pitfalls at all. the only remark: the engine and transmission are supported by 4 pillows. To remove the box, you need to unhook 3 of them, and the engine hangs on one and you must either support it with something from below, or cling to it from above.

Первая реальная, но не очень большая проблема — отсутствовала магистраль сцепления. Но это ничего, русский автопром хоть и загнивается потихоньку, но способен помочь и нам, владельцам железных коней собранных ускоглазыми братьями)). Была куплена тормозная магистраль (металическая тонкая трубка) и 2 шланга ризиновых на магистраль сцепления от шестёрки. Вот тут и выяснилась вся *опа ситуации. На рабочий цилиндр переходник токари сделали легко, а вот на главный цилиндр сцепления никак. Не было у них лерки (фото ниже).

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

Размер резьбы то ли 12x1,25, то ли 12x1,00. Короче толщина большая, а шаг мелкий. Пришлось угробить несколько часов на её поиск. Найдена была в специальном крепёжном магазине.

С успехом сделали переходники и собрали магистраль. Залили тормозуху Motul DOT 4. Сразу скажу6 что допустили один косяк, который позже исправили. Там где резиновый шланг входит в главный цилиндр сверху его прикрывает пластик декоративный. И этот шланг там гнётся очень сильно в месте крепления с фитингом (металически нкаонечником) и удачно начинает вскоре течь. Как потёк — поменяли на тормозной шланг тоже с шестёрки, он крепится боком. Короче смотрим фото ниже.

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

Вторая, и основная проблема — при замене дросселя возникает делема — как его подключать?! Старый дроссель был полуэлектронным, то есть механическая часть его открывала дроссель максимум на половину. Открывать и прикрывать его могла сама машина. Это было необходимо для сброса газа при переходе на повышенную и перегазовки при переходе на пониженную. В связи с этим на старом дросселе было 2 датчика по 4 пина на каждом. На новом всег по 3 пина. Что делать не знал никто. Пытались заставить работать машину на старом дросселе — запуск нормально, через пару секунд, при инициализации компьютера коробки глохнет. На новом вообще не завести, потому как не знали какой провод куда. В итоге я нашёл в интеренет схему всей электрики машины (кому надо — обращайтесь — поделюсь), и стало ясно как переподключить новый дроссель. Делюсь этой секретной информацией на картинке ниже.

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

По этой схеме и переподключаем новый дроссель. Для тех кто с электрикой, как я до этих танцов с бубном, на Вы немного поясню. В правом верхнем углу есть цифры. Из них следует, что провода с *2 есть только в версиях с сиквентальной коробкой, а *3 — на механике.

UPD: По многочисленным просьбам "разжёвываю".

Интересует конкретно эта картинка выше.

Провода с пометкой (*2) — это секвентал, с пометкой (*3) — механика.

Было 2 датчика с 4-мя проводами каждый, станет 2 датчика с 3-мя.

Начинаем с датчика положения дросельной заслонки:

было:

1. L-R (хз что за цвет, красно-какой-то)
2. Y-G (желто-зеленый)
3. Y-B (скорее всего желто-черный/синий)
4. BR (коричневый)

надо:

1. L-R (хз что за цвет, красно-какой-то)
2. BR (коричневый)
3. Y-G (желто-зеленый)

То есть:

старый разъем — новый разъем
1-1
2-3
3-нет
4-2

Теперь второй датчик:

Вместо Accel(eration) position sensor (датчик положения акселератора) будет Idle air control valve (клапан холостого хода)

было:

1. B-L
2. L
3. BR
4. L-R

надо:

1. G (зеленый)
2. B (черный/синий)
3. W-B (бело-черный/синий)

Короче все старые провода откидываем в сторону.))

И начинаем "играться":

1. Нужно воткнуть один из старых проводов (либо 1. B-L, либо 2. L) в разъем №18 колодки D. Подробнее на картинках в посте или на этой фото: s3.images.drive2.ru/car.j…8cc57990ceeca10-large.jpg. У старых проводов разъемы 19 и 20 соответственно.
Просто получается провода близко расположены и можно новые от ECU не тащить.
2. Здесь проще — берем этот же провод B (синий/черный) из первого разъема MAF'а (датчика расхода воздуха), который стоит на впускном (маленькая черная коробочка)
3. Тут подключаем к фишке датчика любой провод и вешаем его на "землю" — например двигатель.

Все, с электрикой разобрались. Продолжаем.

/UPD

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

Здесь видно куда идут провода (определённые контакты в ECU — главный компьютер). Ниже на фотках подробная распиновка всех 4-х разъёмов на мозге.

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002
Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002
Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002
Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

Everything was connected and ... and again the same problem, it starts up and stalls. If you keep the revolutions more than 2 thousand, it will not stall. If you drop less than 2 or raise more than 3.5-4, it stalls. They began to dig the diagram again. It turns out that the main computer and the box's computer communicate via a CAN connection. It's almost impossible to cheat. And after talking with an American who has already changed the box (by the way, it took him 2 months too), we come to the conclusion that a new computer is needed.

Three weeks of waiting and the computer in my hands. I brought it to the service station in the evening. We put it - the car will not start. It's just that the starter relay does not work. Theoretically, the solution to the problem is elementary. before, to start the car, you had to press the brake. On machines with a manual transmission, you need to squeeze the clutch. The clutch pedal even has a button and plug for connecting to it. Yes, and the mating plug is present in the wiring of the car and hangs nearby on a plastic clamp, but its connection did not give results. It can be seen that you have to redo the wiring a little. It was late evening and the decision was postponed the next day. Below is a piece of the diagram, the desired fragment is circled.

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

The next day, they simply pulled out the wiring (see the picture below) from the ECU plug and put it on the ground.

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

After that, the car started up and successfully, with a range of 58,888 km, left the garage… almost 2 months after the start of the "procedure".

While the car was at the same time changed candles, filters, oil (Motul 8100 EcoEnergy 5w30), antifreeze (also Motul).

At the moment, the instrument panel needs to be replaced. There are unused elements on it (the "window" of the selected gear and the box error light). I think to change it straight to the panel from a European, it has a graduation of up to 240 km / h - who can help in purchasing - write. And you also need to finish the gearbox handle - buy a "sock" and the handle itself. And now a poker is sticking out and on it is a ball from a six, that's such a collective farm. I think after the New Year, when I have free time, I will solve this problem.

Photos of the process itself are only captured on the phone and will be posted a little later, if anyone is interested.

For those who want to repeat this, you will need the following:

1. The box itself or an alteration of an existing one.
2. Knob for gear shifting with cover and knob.
3. Cables to it.
4. Clutch pedal.
5. Clutch master cylinder.
6. Clutch slave cylinder.
7. Main line m / y with the main and working cylinders.
8. Throttle valve.
9. ECU (for some reason in Japanese electrical circuits it is called ECM).
10. The dashboard is optional, you can use the old one without any problems.

Here is a "story of one swap".

Tuning Change SMT to MT  Guide to action  - Toyota MR-S 18 L 2002

Mileage: 58,888 km
214 Comments
Sort by:
t
tish 09.12.20

it seems to me that you succeeded =)

S
Switcher 09.12.20

Thank you, I tried very hard, because when I was doing all this I really missed just such an article. Therefore, I decided to describe everything in more detail, so that it would be easier for people.

t
tish 09.12.20

you need to be nominated for "best technical article on drive2")))

I couldn't read everything, but still respect)))

S
Switcher 09.12.20

No, of course, throw it with a link to the source. I'll tell you about the numbers a little later, you need to look. And the cables go through the regular holes, you can't mix them up there.

M
Missory 09.12.20

As I understand it, I bought an ECU for the car?
tell me the numbers of what was and what became.

If you can have a photo from below and from above (from the passenger compartment) as attached to the manual transmission lever. And how I attached the hoses of the cables so that they would not move.

In general, I was surprised that the Americans did not help you.
At least on Honda, they have a very large amount of knowledge.
And they also love MP2))

Would you mind if I throw an article in my day?

S
Switcher 09.12.20

Thanks. You too))

s
sf333 09.12.20

very detailed story, I've already read it!)

Holiday greetings!

S
Switcher 09.12.20

That's right, but I thought about taking a new gearbox because I wanted either a 6-speed or a lock. Once everything is disassembled, why not improve it a little.

The link below shows how to remake the box if there is no desire to change:

www.spyderchat.com/forums...d-conversion-instructions

M
Missory 09.12.20

Could you write what is the difference between the SMT box and MT?
When I drove with you last time, you said that, roughly speaking, the only difference was in the absence of a pedal. Those. all shifting elements (forks, joints, etc.) remain exactly the same. But ordering a box just because of sync is somehow not logical.
Please explain this point.

M
MD 09.12.20

The owner is a master. But in any case, you won't redo it a hundred times, right? :) In fact, replacing the motor is a gimmicky occupation, but in terms of dough it is generally a disaster :) This process will soon be ahead. So if you mature, good luck.

S
Switcher 09.12.20

Just the opposite.

zz and k20 are aluminum and are very similar in size. 3s-gte cast iron, the weight is much more, and it is higher in height, the paddon will hang down, the ground clearance will decrease.

Well, in terms of tuning, yes, the turbo is easier to tune, but I think 220 Honda mares will be enough for the eyes to begin with.

M
MD 09.12.20

Switcher

I see 2 options:
1. 3s-gte, but then we have problems with weight distribution.
2. Honda k20a, but the option is much more expensive (one motor + gearbox will cost 80 thousand).

In your case, 3s-gte would be the right solution. The weight distribution will not change much, but the speed characteristics will be completely different. And the installation should be easier than rearranging the Honda giblets. Well, tuning a turbo engine is much less problematic than an atmospheric one, and the return will be higher. :)

S
Switcher 09.12.20

Over 80 braid-comp included. And so, yes, the option is not budgetary, but the result will be credible. This is exactly the kind of swap made by lotus owners (since 2006, Toyota motors of the zz series have been running on lotuses)

S
SafariVod 09.12.20

In addition to 80 for the motor box, you also need a braid-comp (((It's easier to order a half and carefully pull everything out of it. But this will no longer be a budget option ...

S
Switcher 09.12.20

I see 2 options:
1. 3s-gte, but then we have problems with weight distribution.
2. Honda k20a, but the option is much more expensive (one motor + gearbox will cost 80 thousand).

S
SafariVod 09.12.20

And then what is the way out? Maybe 4A? There are 165 bald. Well, no MR-S ((((

S
Switcher 09.12.20

Thanks.

I thought the same about 2zz, but it seems to me that the resulting investment is not worth it. 2zz has a very small moment.

S
SafariVod 09.12.20

Well done! Did a great job!
I also dream of replacing it with a six-speed, along with an engine for 2 YY.

S
Switcher 09.12.20

Very inert sensations, it feels like the car has become much faster.
Photos will be later in a separate entry.

U
Uber-teen 09.12.20

Well done, there would be more current photos.
How does it feel on the mechanics?)

a
aka-mazai 09.12.20

Switcher

Yeah, I couldn't start for a long time either, I was making up my mind for 3 months.

once again I am convinced that the mechanics are Strength =)

a
aka-mazai 09.12.20

write in the spring how he goes;)

S
Switcher 09.12.20

Yeah, I couldn't start for a long time either, I was making up my mind for 3 months.

a
aka-mazai 09.12.20

operation - cooperation ... It will be useful;) although only a few will decide on this;)

X
Xima 09.12.20

it is clear,
although the principle is different, but the symptoms of glitches are the same

S
Switcher 09.12.20

Earlier I wrote that the sequential box on the MR-ke has nothing to do with a robot from Toyota. The principle of operation is completely different.

X
Xima 09.12.20

did a great job! Toyota's "robotic mechanics" are the area of ​​hell (as well as others, however).
my wife had such crap on Yaris - just a nightmare!

A
Alex72S 09.12.20

Serious work done, definitely respect

S
Switcher 09.12.20

Yes, of course. Switching faster. Start from 4-5 thousand, yes with a blocking sight!

s
slavic88 09.12.20

What's the difference? felt
between the old and the new box ?!

S
Switcher 09.12.20

Thank you, we are trying))

a
alimofo 09.12.20

Yes, so much work has been done, I take off my hat, and that everything is in such detail, I think a lot of people will thank you.

S
Switcher 09.12.20

Mail in a personal, send.

O
OksanockaMRS 09.12.20

I have Maruska problems with the box, but I have not yet decided on the alteration. You wrote that you have an electrical circuit. Could you drop it or link on the Internet

O
OksanockaMRS 09.12.20

The personal address is [email protected]. Thanks in advance

S
Switcher 09.12.20

Thanks, I tried))

N
Nikita1983 09.12.20

HERE!
This article is for those people who think that changing the gearbox = changing the CD from the music. center! :)
GREAT ARTICLE - I reread it 2 times!

M
Mikhail-MRS 09.12.20

The article is excellent, now a friend changes his sequencer to a 6MKPP and ran into the problem you described: the car almost immediately starts to stall. Right now I will copy your article, throw it off on the flag and give it to the masters to finish the swap before the end. An excellent guide - you can publish a book about our little ones, otherwise everything is only in English. or jap. ((
Thank you!)))

u
ulanoff 09.12.20

Damn, I hang a wire on the ground, as it was said: "they just pulled out the wiring (see the picture below) from the ECU plug and put it on the ground." fuse blows ... wire No. 1 from block B ...

d
dnmaster 09.12.20

What parts are needed to replace mechanics with a robot? Thanks in advance.

u
ulanoff 09.12.20

Mutantik

Judging by the diagram, "one of the old wires" (on valve XX) must be thrown onto the 18th leg NOT of the C connector, but of the D-connector, correct, pzhlsta

yes, too, this rebus solved for a long time, wrote on the forum and then forgot

S
Switcher 09.12.20

Thanks, corrected!

M
Mutantik 09.12.20

Judging by the diagram, "one of the old wires" (on valve XX) must be thrown onto the 18th leg NOT of the C connector, but of the D-connector, correct, pzhlsta

S
Switcher 09.12.20

Yes, like they were somewhere. I know for sure that the sequential box (the box itself without a pump and an actuator) is lying around. And you need to look at the computer.

Do you need a brain for the box itself or a common one?

S
ShadrinEvgeny 09.12.20

Do you have any sequential brains left?

S
ShadrinEvgeny 09.12.20

I have a pump with slurry novye = (the drainage clogged the outlet from the software and the water under the glove compartment went into a downpour (flooded everything there ... just like a miracle of engineering, it’s where the brain lives) ... she showed off after the downpour ... my error is 1781 (in short the head does not understand what is required of her) there is either a curtain, or wiring, or a boss ... well, since it was she who was swimming ... eh ...

S
Switcher 09.12.20

Ok, I will look in the next few days. but the problem may not be in the "brain" yet. Perhaps there is a problem with the liquid in the pump, on mrsclub.ru at one time I saw that it was found, including its article was there.

S
ShadrinEvgeny 09.12.20

Yeah, on the box itself = ((((if you don't need to send it? I can't understand what happened to my ... the campaign burned, it will work for half an hour and stand up in defense) (in a neutral position) and until the car has completely cooled down no matter where

S
Starodumov 09.12.20

useful article

U
Urbanu 09.12.20

Well done!
And I have an idea to put an automatic transmission u340
ZKB MKPP
How do you think the automatic transmission will rise in the engine compartment?

l
lexa6969 09.12.20

Everything is clear and understandable, just what is the M / U highway?