Mr2 Motor Problems...

[blue-eyes]

Hi guys,

I'm very new on this forum but allready have a problem! Thats also the reason that I'm here, a friend gave me the hint. At first, I hope you understand my english, its very hard for my to translate the dutch technical terms.

Recently I blew up my engine, Toyota fixed it well (under garantee, wasn't my fould) . The car was running quit well after the replacement.

But after 3500km's the car got some problems. At one moment I had to pull over my car to the side of the road, I did'nt dare to drive any futher. I got the feeling there wasn't enough power anymore, when I hit the gaspedal the car goes forward, but like a Yaris. In 2nd gear the car normally drives over the 100km/h, but stops at 80, in 3th gear it drove over the 150. Now it stops at 140, but takes hours! And so on! The car could do a 0-100 in 7 sec., but now it takes more than 12 seconds!

2 Garages had seen the car, and they couldn'd find a bit...... The checked the errorlog of the engine, no single error was detected......... So I got my car back, but it isn't nice driving anymore............

Someone give me a hint? A clue? I''ll give that to my cardealer, I'll bring the car back till its fixed!

I hope you can help me! I'm little bit sad.... It's so nice weather here, I want to drive my cabrio.

Thanks for the help!

[Bibbs]

is it still under warranty? May be worth dumping back on them and saying "fix it" !!

I take it your car is a mk3?

It is stuttering, misfiring, feeling "fluffy" .. or is it just like they have swapped it with a 1.0 litre?

[blue-eyes]

he he :D

The didn'd swap it with a 1.0 liter version, the first 3500km it was very good driving, powerfull and fast!

When I put the gear in the free position and use the pedal, the engine sounds normally, it looks like that when the engine got some resistance the power collapsse, no more RPM. Speeding up is like "****".

Could it be the enhanced valve system? I asked the dealer the same question, but they keep saying: the errorlog didn'd contain a error, so the car must be good!

Even a mechanic drove the car, he told: wonderfull! Fast, quick..... I suppose he drives normally a VW Beetle or something ;)

[Bibbs]

Can you feel the VVTi kick in? (where the cams change over)

[blue-eyes]

My cardealer promised me to look again. Especially to the margins of the errrors. Mayby there are some values, on its own not enough for creating an error, but together the make the engine very bad.

At the 3000 rpm (on or about) there is no kick at all. If there's some kick, it would be under the 3000 rpm.

[blue-eyes]

After a testdrive the dealer is accepting the problems........ They denied it before. There where no errors, so the car must be good?!?!?!?! Even a technician drove the car and said: The car runs fine!

The problem is the hydraulic pump for the valves or the electronic sensor for that pump.

It looks like a valve timing problem.... It takes several days to fix it, the parts have to be ordered.

I wonder.......

[G6-R]

En anders moeten ze er iemand van de Importeur bij halen als ze het zelf niet meer weten om te kijken of die weten wat het probleem is .

Hoe oud is je MR2 en wat voor motor ligt erin

Heb je al eens gekeken bij de Mr2 club Nederland

http://www.mr2club.nl/!ndex.php?1&res=800

Succes

Sorry for the Dutch language :!Removed!:

[blue-eyes]

The dealer reconnized the problem. So further help from the import organisation is not nessecery anymore. I considered it....

Mij car is from 2002, the engine is replaced at 75000km. At this moment the km counter hits the 79000km. The engine is a 1.8 vvti, the standard engine nowerdays for the new MR2 I suppose. I got the car a year ago at 20000km's. I use the car for traveling to work, this year that will be on or about 80000km's. Thats fine, the drives normally exceptional well :D

p.s. I suppose the forum will be better of when I type dutch :D

[MisteR 2]

jouw auto gebroken!!!

[GSB]

This sounds like the now infamous, pre-cat/oil consumption problem...:

A brief run-down.

In the exhaust manifold/header of the mk3 are 2 small catalytic convertors, known as pre-cats. No-one is sure of what casues the failure, but these break down and get blocked, leading to increasd oil consumption, leading to more blocking, leading to the engine going bang. If the dealer that replaced your engine didnt replace both the precats and the main catalytic convertor, the new engine will also fail.

More reading:

http://www.mr2roc.org/forum/viewtopic.php?t=3507

http://www.mr2roc.org/forum/viewtopic.php?t=3258

http://www.spyderchat.com/phpBB/viewtopic.php?t=46

http://www.spyderchat.com/phpBB/viewtopic.php?t=8449

It might be worth your while posting on a mk3 MR2 specific forum for more advice:

http://www.mr2roc.org/forum/index.php

[blue-eyes]

@GSB: I'll mention that to the dealer!!

There's no oil consumption at all. It's a defunctional oil pump for the valve technic.

Meanwhile, they replace the pump and the sensor. Allthough the car is much better, the're still problems...... Fuel problems. The valve opens normally 0.3 ms. The computer in the MR2 corrects this (due problems!!) to 0,89 ms!!!!

They think they fix the problem tomorrow.

@MisteR 2 : u got that right, lol

[blue-eyes]

They have fixed the problems......... All the problems I mentioned, were not the real problems. When they did the check, the system gave VVTI problems. So they thougt it must be the VVTI. But it wasn't. I think when they had checked the system again, they hadn't seen the VVTI problem again.

The real problem was............ the CATS. 2 of 3 cats were completely gone.

I found on a dutch site some more info (english):

http://www.spyderchat.com/phpBB/viewtopic....449&postdays=0& postorder=asc&start=0

http://www.spyderchat.com/phpBB/viewtopic.php?t=46

http://www.mr2roc.org/forum/viewtopic.php?t=3507