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Post by badbob on Nov 18, 2019 17:11:30 GMT
Cupra Ateca 2.0 TSI 300 PS
How to deactivate the exhaust flap control to always open.
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nesti
Junior Member
Posts: 56
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Post by nesti on Jan 23, 2020 7:10:18 GMT
Hi,
I read in a Board that it's working like this:
Control Units -> Engine -> Long Coding -> Goto Byte 09 (must all to the right) -> Goto Bit 2 and uncheck this.
Some guys said it's working without problems and some said it worked after a special process:
start the engine
deactivate Start/Stop set DSG to S (Cupra Modus)
shut down the engine set DSG to P open door so that the ignition is interrupted wait for a minute start the ignition
and then:
Control Units -> Engine -> Long Coding -> Goto Byte 09 (must all to the right) -> Goto Bit 2 and uncheck this.
I haven't checked it on my Cupra Ateca yet. But since the new generation of OBDEleven is out, i'll get thr PRO version and I'll try it.
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nesti
Junior Member
Posts: 56
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Post by nesti on Jan 28, 2020 14:34:37 GMT
hi, ok I've tried it now.
first I got the error with the "marginal condition" and now I get this one "(31)function not available"
anyone else has an idea?
when I look at the Bit 2 I see on the ODBEleven Software "Exhaust Valves" as name. (when I was watching the guy with the S3 or the one with the Golf R) My Bit 2 is just called Bit 2 without any name.
thanks for any ideas
nesti
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Deleted
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Post by Deleted on Jan 29, 2020 13:46:27 GMT
Does the car have the Exhaust Valves fitted as standard, afraid I dont know the Ateca well.
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nesti
Junior Member
Posts: 56
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Post by nesti on Jan 29, 2020 13:57:57 GMT
Hi, yes the Cupra Ateca has the exhaust valves as standard.
My main problem is not that the valves are open in the cupra mode and DSG on S and as soon as you accelerate they are closing again. The main problem is that the 2 valves are operated separetly, that means that the right on is opening more often and the left one only under high load. This results in haveing 3 pipes which are dirty and one who's looking almost as new  .
Another problem is if you go into cupra mode and DSG on S the valves are opening and while driving you get some missfires. If you shut down the engine keep the cupra mode and start the engine again, the valves are not open anymore. You get less missfires. So to open them again while standing, you have to change the driver profile onto another position and back to cupra.
NESTi
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Deleted
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Post by Deleted on Jan 29, 2020 15:53:34 GMT
I have certainly seen a number of Golf Owners complaining about two pipes being dirty and two clean but not as you descripe 3 & 1, If you are still under warranty might be worth a chat with the dealer about that.
When you say missfires are these recorded (you can see them in live data) or do you refer to the burp noise the exaust makes when under pressure.
With regards to loosing the valves I dont know for sure but I do know that on all the Leons when you set the car into Cupra (whilst driving) you get all the toys working and a nice engine noise. When you recycle the ignition (eg turn it off and back on) although the screen says its in cupra mode it is not, it has reverted to Comfort mode - same applies to the Golf cars as well. You have to (as you describe) change mode and back to cupra again every time you restart the car.
I believe this is because we have electronic switches with no memory so they have had to code the default position (which is Comfort).
Same applies to the stop start button on all the Leons (Except the Cupra R) but you can buy a memory module that takes care of that.
Hope that helps.
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nesti
Junior Member
Posts: 56
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Post by nesti on Jan 29, 2020 16:42:03 GMT
I saw the 3 + 1 exhaust problems on some new S3 aswell. It's simply annoying.
Missfire.. burps ... I am talking about the effect when you release the gas f.ex. just before the DSG swithced into the next gear, then you get some slight missfires. I don't mean the burps or plops when it's changing gear. ^^
I was thinking about getting this "CB2 Klappensteuerung", but why should I spend 450€ if it's theoretically possible to just disable the valves and the start/stop with some simple changes . (and I don't have to mess with the cables in the car)
NESTi
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Deleted
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Post by Deleted on Jan 30, 2020 10:02:23 GMT
Not sure if it makes any difference but have you tried following (this from Golf 7.5 forum)
if you go to the Engine module you will see "Exhaust flaps installed" and I unchecked it. This should keep the exhaust flaps OPEN all the time.
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nesti
Junior Member
Posts: 56
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Post by nesti on Jan 30, 2020 10:36:18 GMT
Not sure if it makes any difference but have you tried following (this from Golf 7.5 forum) if you go to the Engine module you will see "Exhaust flaps installed" and I unchecked it. This should keep the exhaust flaps OPEN all the time.
hi I just checked it offline and didn't see that option. I'll try it when I am back in the car. I saw that I don't have any security access codes entered in the engine module. Maybe thats why some things aren't working. Well at least I wasn't asked for any.
thanks
NESTi
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nesti
Junior Member
Posts: 56
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Post by nesti on Feb 1, 2020 12:46:59 GMT
tried to enter the password in the security settings, but still: funktion not available. This is really strange as the cupra ateca definitely has valves. Maybe it's only the sequence in which I am trying it. I heared that the right sequence is the trick, but for each user the sequence changed.
NESTi
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Deleted
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Post by Deleted on Feb 1, 2020 13:29:36 GMT
Just seen a video on youtube for the Audi S3 / Golf R to disable the flaps. There coding is as per your older post
Select Control Unit 01 Select Long Coding Select Byte 09 Tick Bit 2
I have done a screen dump of my settings and as you can see it has a label Exhaust Valve
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nesti
Junior Member
Posts: 56
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Post by nesti on Feb 1, 2020 14:42:01 GMT
Hi, yeah I saw the some on Youtube too. The Golf Guy has a full sequence where you have to do one step after the other with the DSG in certain postitons. For the S3 there is an APP  On my Car there is no Note on Bit 2. I don't have any description on any on the engine control unit bits.
This is my default:
I tried to untick it with the whole sequence like:
start engine put car into cupra dsg into s (valves are opening) stop the engine (ignition still on)
uncheck Byte 9 / bit 2 put dsg back to P press save button
always the same result: 31 function not available. I cleared the cache aswell, but no change
NESTi
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Deleted
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Post by Deleted on Feb 1, 2020 14:56:47 GMT
have you tried changing it just with ignition on and see if that does anything.
have you tried just uncheck Byte 9 Bit 2 with none of the other stuff
If the car is in Cupra mode but in D or Eco I take it flaps are not open,
What happens if car is in Comfort mode and dsg in S do the flaps open then.
The other thing that can sometimes make a difference have you tried making the changes using a different diagnostic mode.
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nesti
Junior Member
Posts: 56
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Post by nesti on Feb 1, 2020 15:12:37 GMT
As I understood, if you disable the valves the car soft stops triggering the valves. If you disable them doesn't mean they are open, just that they stay in the last triggered state. I haven't tried it without the whole stuff because all the guides that I saw (for the other brands) always indicated, that is has to be done like that so that the flaps stay open. On the Golf R it's simpler because this guy only had the DSG in D and S. And in S the flaps were open. the problem is, that even if you set in on cupra, as soon as you turn of the car it's back on comfort. I am not 100% sure, but I don't think the flaps are opening fully in the other modes. Maybe I have to check with my cam (endoscopic). Even in Cupra Mode and on S they are just open when standing, as soon as you drive of, the two are closing and opening differently again. (thats why the left one differs from the other 3. I can try it with the ignition only, but I don't think that the flaps are opening without engine running.
NESTi
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Deleted
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Post by Deleted on Feb 1, 2020 16:58:14 GMT
i have a non stock exhaust system so cant do any of this.
Video's are very confusing (and manual is diff to DSG)
So the obd11 app for the golf has the following narrative
ATTENTION
Before using this appication set the car in "RACE" mode and physically check if the flappers are open """"""""
So I presume that RACE mode equates to CUPRA Mode.
if that is the case as we know even if the mode shows as cupra at start up its not in Cupra Mode (and i have not seen this has changed with newer models but may be wrong)
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Therefore I would suggest changing to sport and then going back to Cupra mode.
On my car when I go to Cupra mode it automatically sets the DSG to Sports so nothing needs doing.
The ignition off and back on worries me slightly because when you do that the mode is back in Comfort even though it shows Cupra
The app does not say engine must be on - not that means anything as it could be wrong.
Lastly on the video's I have looked at they just do the setup, turn engine off and then ignition on (no need for door to open).
Sorry I cant be of more help.
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nesti
Junior Member
Posts: 56
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Post by nesti on Feb 1, 2020 17:23:02 GMT
No problem testeronline, your help is much appreciated. I tried everything from engine running to ignition only, with DSG to D/S and with DSG while ignition back to P. (also the switch between sport and cupra to reset it) I can hear that the valves are open after the swap.
I'll keep trying but my focus is not mainly on the valves, but it would have been a nice toy to play with. My main concern is still the trunk opening with a single click on the remote respectly the button inside. (most of the guides were with the vcds soft, and I don't have these options available) and another point is the MiM which I will unlock over the apps. I think as I am connecting mainly my phone to the car, I don't need ViM as I never watch dvd's. (and I hate to stop the car to get mirrorlink running) thanks alot for your time testeronline have a great evening NESTi |
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nesti
Junior Member
Posts: 56
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Post by nesti on Jun 15, 2021 10:24:54 GMT
I finally conencted my OBD11 again and was checking if there were any interesting updates. I saw that the flap control is now in the Menü of the Cupra Ateca. (Klappenauspuffanlage).
But after trying to disable them, I still get the same error as before.
Anyone managed to get it to work without the "(31) function not available" error?
thanks alot.
nesti
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nesti
Junior Member
Posts: 56
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Post by nesti on Jun 16, 2021 19:11:03 GMT
I saw that for some functions to work, the engine hood should be opened.
I keep you posted.
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Deleted
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Post by Deleted on Jun 17, 2021 7:10:24 GMT
Dont mean it will sole your issue but as far as i am aware for some late 2020 and 2021 onwards VAG Cars you now need to have the bonnet open for coding to work.
Scans work fine, coding needs bonnet open.
This is the old Audi security feature which is now applied across the whole VAG Group
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nesti
Junior Member
Posts: 56
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Post by nesti on Jun 17, 2021 10:03:25 GMT
thx testeronline for the confirmation.
I need to do several checks, as the flaps would be disabled IF its working with the hood is open. So I guess I need to to the 10 steps from the Golf tutaorial, so that the flaps are open before I apply to disable them.
thx alot
nesti
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Post by donkey3399 on Jul 11, 2023 16:41:27 GMT
Hi all,
Need help to deactivate my Exhaust Flap with my OBDeleven. I have replaced my original to a Cat Back exhaust. Due need to unable the Exhaust Flap module.
Thanks 🙏
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Post by henrikasm on Aug 31, 2023 15:35:41 GMT
Looking for an answer to this question also.
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