Catalytic converter replacement with ordinary silencer?
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Vuja
# 19 Января 2009 02:40
If catalytic converter lost functionaliy and replace the ordinary silencer does it impact on the parameters of engine? I think that the machine better ''breathe'' and higher consumption fuel and nothing more. What is your opinion or expirience? I ask that question because catalytic converter has high price.
Gloom
# 19 Января 2009 02:51
No, removal of the catalyst does not influence job of the engine.
Power will not change.
RushTonop
# 19 Января 2009 02:57
[ENG]If you are not from greenpeace, you can replace your catalyst with ordinary silencer, but don't forget to change ECU firmware/setup, because IMHO catalyst has oxygen sensor, if so, it must be switched off with ECU firmware settings.

[RUS]Если ты не зелёный, можешь поменять на обычный глушитель, но не забудь сменить прошивку/настройки, ИМХО в катализаторе есть датчик кислорода, и он должен быть отключен в настройках АСУД.
Gloom
# 19 Января 2009 02:59
RushTonop
если евро 2 и один ДК, то ничего менять не надо Smile
RushTonop
# 19 Января 2009 03:01
Gloom писал(а):

No, removal of the catalyst does not influence job of the engine.
Power will not change.


What about oxygen sensor, please comment my post above if you know. If catalyst has embedded oxygen sensor, ECU will display CE and fallback to configuration without it or what ?
RushTonop
# 19 Января 2009 03:02
Ага, понятно, пасиб Smile
RushTonop
# 19 Января 2009 03:03
Vuja, please post here your engine part number. Or you can just fill in profile Smile The rules of this forum requires you to fill profile.
Vuja
# 19 Января 2009 03:07
RushTonop писал(а):

[ENG]If you are not from greenpeace, you can replace your catalyst with ordinary silencer, but don't forget to change ECU firmware/setup, because IMHO catalyst has oxygen sensor, if so, it must be switched off with ECU firmware settings.

[RUS]Если ты не зелёный, можешь поменять на обычный глушитель, но не забудь сменить прошивку/настройки, ИМХО в катализаторе есть датчик кислорода, и он должен быть отключен в настройках АСУД.



I think that you have wrong opinion. Ordinary silencer welding behind sensors for oxygen! I think that Vaz 1,6 16 valves has only one sensor for oxygen immediately after engine output gas branches. Wink
RushTonop
# 19 Января 2009 03:13
Vuja писал(а):

I think that you have wrong opinion. Ordinary silencer welding behind sensors for oxygen! I think that Vaz 1,6 16 valves has only one sensor for oxygen immediately after engine output gas branches. Wink



yes, I'm wrong for Euro-2 engine:

Gloom писал(а):


[RUS]если евро 2 и один ДК, то ничего менять не надо Smile
[ENG]if you have euro-2 with one oxygen sensor, nothing need to change

Vuja
# 19 Января 2009 03:16
Gloom писал(а):

No, removal of the catalyst does not influence job of the engine.
Power will not change.



I think that expansion output pipes allows the car to breathe easier, and little gain of power.
For much better performance should be a greater flow of air through the engine. Better entrance air supported turbocharged and wider output pipes. Of corse, if the repair engine we get a sports car. But I don't need sports car. What you think about that?
Vuja
# 19 Января 2009 03:27
RushTonop писал(а):

Vuja писал(а):

I think that you have wrong opinion. Ordinary silencer welding behind sensors for oxygen! I think that Vaz 1,6 16 valves has only one sensor for oxygen immediately after engine output gas branches. Wink



yes, I'm wrong for Euro-2 engine:

Gloom писал(а):


[RUS]если евро 2 и один ДК, то ничего менять не надо Smile
[ENG]if you have euro-2 with one oxygen sensor, nothing need to change


I have VAZ 21124 1,6 16 valves Evro 3 with plastics впускного трубопровода!
Kachan
# 19 Января 2009 08:31
Vuja писал(а):

I have VAZ 21124 1,6 16 valves Evro 3 with plastics впускного трубопровода!


Then, i think you must have 2 oxygen sensors (before and after catalitic converter). Removing converter and 2nd sensor - you must remove 2nd sensor flag from ECU software (i.e. you'll get Euro-2), or replace 2nd OS with emulator.
IMHO - you dont receive big gain in power by changing output pipes on civilian (not sport) car, couple of HP doesnt count Smile
Евгений26
# 19 Января 2009 09:24
Чертовски приятно, что наши спецы не только на могучем, но и на инглише свободно...
Давай Россия, давай-давай!!!
RushTonop
# 19 Января 2009 14:11
Kachan писал(а):

Vuja писал(а):

I have VAZ 21124 1,6 16 valves Evro 3 with plastics впускного трубопровода!


Then, i think you must have 2 oxygen sensors (before and after catalitic converter). Removing converter and 2nd sensor - you must remove 2nd sensor flag from ECU software (i.e. you'll get Euro-2), or replace 2nd OS with emulator.


+1

Kachan писал(а):

IMHO - you dont receive big gain in power by changing output pipes on civilian (not sport) car, couple of HP doesnt count Smile


Around 3hp ic.
Vuja
# 20 Января 2009 00:41
[quote="Kachan"]
Vuja писал(а):

I have VAZ 21124 1,6 16 valves Evro 3 with plastics впускного трубопровода!


Then, i think you must have 2 oxygen sensors (before and after catalitic converter). Removing converter and 2nd sensor - you must remove 2nd sensor flag from ECU software (i.e. you'll get Euro-2), or replace 2nd OS with emulator.

How to do that? I want to know that step by step if you sure in this job.
Another question: I have TNG in my VAZ (секвенциальной газа ''Tomassto). If I drive on TNG then signals from the oxygen sensors to received gas car computer or a computer? I think then oxygen sensors do not have any impact on the work of the motor in this case.
Kachan
# 20 Января 2009 00:52
Vuja писал(а):


How to do that? I want to know that step by step if you sure in this job.
Another question: I have TNG in my VAZ (секвенциальной газа ''Tomassto). If I drive on TNG then signals from the oxygen sensors to received gas car computer or a computer? I think then oxygen sensors do not have any impact on the work of the motor in this case.


Im not so sure - just read about this several times Pardon But here we have more competent specialists in that kind of works, if they give out any instructions - maybe i can help to translate.
maksson
# 20 Января 2009 09:36
Евгений26
Думаешь все на инглише шпрехают)))))Я например переводчиком в мэйле пользуюсь)))
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