Yaris ECU broken??!!!!!!

[auxmike]

Originally Posted by Yaris Hilton

GM put out some lousy Oldsmobiles and Cadillacs with a gasoline V8 converted to Diesel circa 1980. Failed on the market and the GM execs concluded Diesels just wouldn't work in America.

Don't forget the Caddy 4-6-8 engine of the same period!

[Yaris Hilton]

Oh, I haven't forgotten it. Actually, the idea is sound, it was poorly implemented.

GM had a history of coming up with radical new ideas and putting them into production after limited testing. The buyers were the test drivers. If you bought a GM model in about the third year of production or later, it was probably a good car. Heaven help you if you were an early adopter.

[phb10186]

Originally Posted by Yaris Hilton

Oh, I haven't forgotten it. Actually, the idea is sound, it was poorly implemented.

GM had a history of coming up with radical new ideas and putting them into production after limited testing. The buyers were the test drivers. If you bought a GM model in about the third year of production or later, it was probably a good car. Heaven help you if you were an early adopter.

Isn't the Dodge Viper engine an old truck unit that was diesel converted to petrol a long while ago?


... Diesel eill only catch on if there is a financial incentive, and with gad at $3-4 per gallon, there isn't one.

If I lived in the US, I would have a V8 for sure, no point not. Fuel in the UK id about $7-8 per gallon. Sucks.

[phb10186]

Originally Posted by CTScott

OK, so are they saying that the transmission ECU is bad or the main ECM?

Yes, they are saying that the tranny ECU is shot... which I have trouble with... but I did a google search and there are multiple problems with this 1.0 MMT semi-auto system. So much so that... they still make it!

If ECU's are going Toyota should have made a recall, as I would argue that it is a safety issue, as a breakdown is a safety issue.

Toyota want 12,00 Euro's, which is like $1500 or £1000 for the ECU. I have found a guy that has a tranny complete with ECU for £395, but that's no use for me, as I will post the ECU to Grease, and have a surplus tranny.

Actually scrap parts in the UK tend to be pretty cheap... typically £50-100 for any ECU that is not special in any way.

[bronsin]

Originally Posted by phb10186

Isn't the Dodge Viper engine an old truck unit that was diesel converted to petrol a long while ago?

Nope that was a gas V8 modded into a (gas) V10. Yeah here in the US we still run around in V8s. We buy from the Saudi's who then give our $$$$ to the tererorists. Everybodys happy!
I just paid $2.48 a gallon last week!

[Yaris Hilton]

They made a gas V10 truck engine that had the same block but different heads, I think. Dodge's truck Diesel is a straight 6 Cummins.

[phb10186]

So, I managed to get an ECU for this 1.0 MMT Yaris, but the only one I could find came with the gearbox too!

£350 all in - that's like $550, so not on the whole too bad.

The ECU I wanted was: 8953052090, but I got one with the code 8953052100

I think due to the right and left hand drive markets, but I am taking an educated guess that the ECU is the same.

Is it?

... well anyway, the gearbox is really cool - it has three servos on it, and I logically guess that one is to disengage the clutch, while the other is to up-change, and the third the to down-change.

It has a standard clutch plate, and no torque convertor, so I can only assume that it works like a sequential motorbike manual gearbox, but with ECU controlled servo-actuation.

And then I though - well you can get 1.0 motorbikes, so this is basically a 1.0 motorbike powered yaris... well kinda, sorta not.

I was really impressed with the overall quality of this MMT unit, and as a biker myself, it's a pretty interesting piece of kit....

only problem is that sequential boxes arent designed to carry large loads well, so those servo's do a heck of a lot of work... and they are only the size of a childs fist or something.

They want the gearbox sent to them as they are not sure that it isnt coded - but I can't think why it would be - its the compatibility with the engine ECU that I would be concerned with.

Anyway, I was only helping out with this issue because we have good parts and breakers in the UK, and Greece is seemingly devoid of anything here. But it's no different to sending stuff between coasts in the US...

The authorised Toyota dealer in Greece strangely still don't know the issue for sure, and they are willing to fit used parts - work that out, cos I cant!

[CTScott]

Originally Posted by phb10186

So, I managed to get an ECU for this 1.0 MMT Yaris, but the only one I could find came with the gearbox too!

£350 all in - that's like $550, so not on the whole too bad.

The ECU I wanted was: 8953052090, but I got one with the code 8953052100

I think due to the right and left hand drive markets, but I am taking an educated guess that the ECU is the same.

Is it?

89530-52090 is for LHD and 89530-52100 is for RHD. I am not sure what the difference will be between the two. Hopefully it is just a difference in the mounting bracket.

[Yaris Hilton]

Originally Posted by phb10186

And then I though - well you can get 1.0 motorbikes, so this is basically a 1.0 motorbike powered yaris... well kinda, sorta not.

I think the same way about my 1.5 liter 1NZ-FE. Bikes come with engines that big and bigger, Yamaha reportedly designed the engine or at least the head, and it uses a valve adjustment scheme mostly found in motorcycle engines.

Back to the topic of discussion...

[phb10186]

Originally Posted by CTScott

89530-52090 is for LHD and 89530-52100 is for RHD. I am not sure what the difference will be between the two. Hopefully it is just a difference in the mounting bracket.

It was the damn ECU!!!!!!!!!!!!!!!!!!!!!!

It cost me £15 to send the ECU from the UK to Greece, and £110 to send the gearbox, which they wanted before even trying the ECU.

Anyway the RHD ECU worked fine in the LHD car... so it was just the mounting bracket!

Damn, ECU failure.... shame on you Toyota - wouldn't happen in a Honda!

[Yaris Hilton]

Glad you got it fixed!

[dushanm]

hello guys

i have a Yaris t1 5dr air-con .. want to install 17'' mags is it a good idea? as per the engine size? and mechanical parts etc

[127.0.0.1]

Originally Posted by dushanm

hello guys

i have a Yaris t1 5dr air-con .. want to install 17'' mags is it a good idea? as per the engine size? and mechanical parts etc

wrong thread. start a new thread in suspension forum.