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Hello Guys, I write from Serbia in hope you might hold some answers for me. Two weeks ago I have undergone 180 000km service, belts and etc... Since that time I have noticed that car does not pull 'right' in 2nd gear between 1700-2100rpm, first at Mazda dealership they thought Denso pump was faulty, they have installed new one, but it behaved in the same way. Acctualy it didn't happend every time, more like every 1/3 of driving, especialy if I take it uphill in 2nd gear. So they have tested flowmeter ( three different ) but they gave same results. EGR they tried mechanicaly, and say it is fine. In the end we found out that vacuum that is connected to Turbo is not pulling that metal rod all the way, acctualy, when engine was cold it would work, but as soon as tepm. was right it would not. Also in 'idle' when acc. pedal pressed it would work rough. So I went to Turbo repair, it took two days, and when I came the guy there said it is working now , but that he is still not satisfied and that I shoud take Catalyst off and then he will try , because he thinks it is catalist fault. Now I will give you data of two Turbo measurements in Mazda dealership before and after turbo repair and please if you can help give me some info. I have been reading on net for few days and God knows how many hours, even used google to translate your forum , but still could not get it. Thanx.
DATA:
before repair of turbo preasure was app. 1.1- 1.15 bar

according to Mazda service manual it should be 2-2.5 bar.(2.423- 2.542 kgf/cm3).

and now after turbo repair: Maf 3.66v; Map. 4.04v; Rpm. 2617rpm; Map. 1.76Bar

hi, hey, hello:) BubaJez.
Welcome to mazdaspeed forum.
Write to us which one model car (mazda I mean ) you have. Then, we will think as it help.
I hope

My english is not goods. I'm sorry ....


Now I see ... Your car is exactly how my

mail to JAKSA, he knows everything about mazda diesel etc.

Thanx for warm welcome.Well, I did write the model in the title. Mazda 323 DITD, BJ, Year 2001, Cheers M8.

Hi BubaJez!

I suggest you to check your fuel filter. I know it might sound stupid, but I have the same car as yours and some of your problems are familiar to me. I went with my baby to hundreds of different mechanics and none could help me. Most of them thought, that my problem is caused by the injection pump, but accidentally it came out, that my fuel filter was totally fu%$&*#@ed with some dirt. Anyway, I hope that your car will be just fine!

Good Luck!

@madman thanx a lot. Still I have just changed all filters 1000km ago, so it does not seem to be logical, bur I might give it a try.

My filter was also quite new, but unfortunately I had to add some junk fuel and it caused a lot of trouble. It`s not a big deal to check it, so I suggest you to do it, because it might help. Good luck!

BubaJez
the MAP data you posted don't fit to any measurements I did or other guys on forum did. At 2600 rpm the pressure should be about 0.85 bar (measuring from the atmospheric pressure), I have about 0.95 bar. 2-2.5 bar is way too much, 1.75 bar is also too much! As far as I know even Mazda6 has 1.4 bar.
Do you have MAP data on 1600-2600 rpm?

no, guy from service did only one save during test drive and I have posted this. sorry

First data on the list was BARO : 997.2mBar

Also in Mazda 323 service manual [ they have in dealership]it reads like this: The following pressure indicates absolute pressure
237.5-249.1 kPa {2.423-2.542kgf/cm2, 34.46-36.14 psi}

Your boost is too much! It's should be 0.8 bar. I think your turbo is die or you have a problem on Air intake or intercooler. A little hole or sth like this on the pipes.... Change your air filter and find this hole... I think your turbo overboosting but there can be many reasons for this problem, really... Probabli the way of check your boost is not as it should be?

Welcome on MazdaSpeed !

Thanx guys . Can you help with cheking pipes??? Can i do it myself? Or have to take it to service? I just changed all filters, like two weeks ago, normal driving in the city no dirt roads or so....

Yes, you'll be able to do it yourself. I think the better way to do it is to dismantle your IC (your instructions for this you can find on this topic http://forum.mazdaspeed.pl/viewtopic.php?t=33640 ) But you cannot dismantle your front bumper ( in 323 you have enough place for this ) And cleaning your IC After it, you can look for pipes and trying to find holes and etc... But this is one of a lot reasons for this problem... If it isn't help you, we'll think of another advices...

You tell us your turbo was repair... I think this guys montage it wrong or set up the turbo wrong, a pipes etc... check this.. I suggest, you can download a manual intructions of DiTD (on english) it'll helpful I think...

Please Pm me with link to DITD manual download in english, all I could find on net was Protege ( USA petrol kind) and it does not help with DITD stuff

also dealership checked turbo and connections are o.k, but sill improvement is 15% and still not pulling from 1500rpm, but starts at 2000rpm. in two days I am taking catalist off to see if it might be the case, and tomorow I will inspect all pipes to see if there is any holes.

Pm me your e-mail and l upload my DiTD manual on rapidshare and you'll download it I think the catalist isn't be a reason if I know what is a catalist on polish My turbo starts at 1300-1400rpm... I think you'll cleaning IC and all cool air intake (on engine too) and will be good...

You can see that (engine part of intake ) in this thread. http://forum.mazdaspeed.pl/viewtopic.php?t=26604

Good luck!

There is another thing I just remembered ant it is that po403 error is present since 70000km, in the service ( official importer of mazda) didn'tknow what was cousing it, Egr ''is fine'' they said as well as flow meter...Maybe this could be the reason why Turbo had to be repaired???

EGR clean. Still problems, tomorow cleaning intake and checking catalist

Good I think Egr doesn't be the reason why turbo had to be repaired. How kilometers have you now?

now I have 181500km, but i think that as turbo went 'kaboom' it destroyed catalyst converter ( oil from turbo that was burned ) and it will in the end be catalyst converter... Is there a chance to buy it 'used' in Poland and what would be the price? Here this type of car can't be found on 'junk yard' and new catalyst converter costs app 850€. Cheers.

Oh I understand this... Hmm i think is possible to find the catalist in poland on after crash car. But you have to cut this on exhaust. I don't know, have DiTD a probe lambda on catalist? If no you can to weld a pipe or find a after crash car in serbia. I think the costs in polish would be 100-150$ but a new catalist in mazda saloon would be costs 300-400 $ i think but i'm not sure. I think shipping it for costs more than new catalist

EDIT I'm not sure what CATALIST mine im polish . But please remeber before the catalist is silencer after the turbo possible is that broken?