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Author Topic: Overrun Flames, Gargle, Pop  (Read 101737 times)
jecko
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« Reply #435 on: October 03, 2018, 03:50:21 PM »

hi
i ve read all pages many times, but i can't do successfully this funny mod.

i've modded my 06A906032DR like this:

KFZWOP x-20 on 10-20% load from 3000rpm to max
KFZWMN on -24 for first three load rows from 2520rpm to max
KFTVSA on 2.55 from 3000.0
CWSAWE on 1 to address 011211

i can hear some only small pops under 3000rpm (confused)

apprecciate any help.
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Iain
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« Reply #436 on: October 05, 2018, 08:31:36 AM »

Yes, could be. But the first bit of CWDMFAB completely disables injection.

@Iain:
When releasing the throttle, at, lets say 3000rpm, is there a rough engine break or not?

P.S.: In one case that I experienced, the car only started banging at -40 degree KFZWMN.

No rough engine braking to report - it seems perfectly driveable with no odd behaviour other than perhaps a little stutter at very high RPM and light throttle inputs (I assume because car is hitting -30 timing not +32 and interpolation is doing weird stuff between the cells. You really do have to try to make it hit these issues though!

How do you identify the codewords in a file correctly? I found CWSAWE by looking at other similar files  110 004 003 032 005 - there was an identical section of data in roughly the same place on all 2.0TFSi stuff I looked at, and the Cupra pops file had this modified so I assumed from what I had read that this was probably CWSAWE.

So if I understand correctly, CWSAWE stock is 00000011, and modified is 00000000

So as per below, what I (should) have changed is to make the file so that fuel cut is always delayed, and b_denox does not disable fuel cut - everything else appears to already be set to not switch off the fuel;

The function can be configured via the internal codeword CWSAWE:
+ --- + --- + --- + --- + --- + --- + --- + --- +
Bit No .: | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
+ --- + --- + --- + --- + --- + - + - + - + - + - + - +
| | | | |
| | | | + ---------------------> 0 = Push-off is only delayed at B_kuppl = 1
| | | | 1 = fuel cut is always delayed
| | | |
| | | + -------------------------> 0 = B_denox does not disable fuel cutoff
| | | 1 = B_denox blocks fuel cutoff
| | |
| | + -----------------------------> 0 = B_desu does not disable fuel cutoff
| | 1 = B_desu blocks fuel cutoff
| |
| + ---------------------------------> 0 = B_dsls does not disable fuel cutoff
| 1 = B_dsls blocks fuel cutoff
|
+ -------------------------------------> is used in% MDFAFI

Or am i making a horrible mistake in translation  Huh

Where can I find a chart showing how the MED9.1 ECU operates, I've seen the diagrams - rather like a flowchart, but I'm not sure what they're called. Perhaps if I study this I can better understand how/why this doesn't work 100%?

Thanks for all the help!


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nyet
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« Reply #437 on: October 05, 2018, 09:56:07 AM »

Where can I find a chart showing how the MED9.1 ECU operates, I've seen the diagrams - rather like a flowchart, but I'm not sure what they're called. Perhaps if I study this I can better understand how/why this doesn't work 100%?

Recently posted:

http://nefariousmotorsports.com/forum/index.php?topic=15018.0title=
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
ibizaCUPRA18t
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« Reply #438 on: October 13, 2018, 12:15:02 PM »

hi
i ve read all pages many times, but i can't do successfully this funny mod.

i've modded my 06A906032DR like this:

KFZWOP x-20 on 10-20% load from 3000rpm to max
KFZWMN on -24 for first three load rows from 2520rpm to max
KFTVSA on 2.55 from 3000.0
CWSAWE on 1 to address 011211

i can hear some only small pops under 3000rpm (confused)

apprecciate any help.

Try this, and add cwsawe=1 if its required.
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armageddon
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« Reply #439 on: November 10, 2018, 03:42:04 PM »

Hi, trying to find CWSAWE on 018N ecu, comparing to others I think it shlould be arround x15397, can someone confirm?

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jecko
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« Reply #440 on: November 10, 2018, 03:43:09 PM »

Try this, and add cwsawe=1 if its required.

Thanks. Now it s OK, and I see where s my error.
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in_motion
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« Reply #441 on: November 23, 2018, 01:09:09 PM »

Hello, can someone please help me to find KFZWMN on 8E0909518AQ BFB?
Thanks.
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in_motion
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« Reply #442 on: November 24, 2018, 10:31:45 AM »

All right, looks like 0x124E7 is KFZWMN_0_A and 0x125BF is KFZWMN_1_A
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Iain
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« Reply #443 on: December 08, 2018, 07:44:52 AM »

Unsure if helps anyone, but have attached a map pack from here with a few fuel cut maps for the 2.0TFSI.

KFTVSA, KFNWEGM x3 are all on there.

MK2 Leon FR BWA
HW: 0261S02113
SW: 1037386675
Engine: 2.0l R4/4V TFSI
SW upg.: 1P0907115   0040

For fuel I used Winols

For pops above 5k, set KFTVSA as per image.
For pops ALL the time and melty cats/exhausts etc leave KFTVSA alone and set all the KFNWEGM maps above rev limit.

For timing I used Tunerpro, specifically a few maps from ECM on it.

-20 to -30 ignition seems to work best. Less timing doesn't make it any louder, and any more starts to make it not pop.

I've attached the XDF i used for this too, and a screenshot of what I did to get it all to work.

Spark advance correction map - set to -24 in low load high RPM areas.
Spark advance basemap - set to -24 in the same areas. Repeat changes across all six.







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bennyg
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« Reply #444 on: January 02, 2019, 05:47:28 AM »

I have got my A4 B7 TFSI (BUL) to pop really nicely using all the info on this thread. However doing so I have lost engine breaking. Does anyone know how to retain this?
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sonique
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« Reply #445 on: January 02, 2019, 07:09:05 AM »

not use KFNWEGM
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pablofrtdi
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« Reply #446 on: February 04, 2019, 02:04:27 AM »

Thanks. Now it s OK, and I see where s my error.

Could you please shown us what was the error please?
Because I have a MED9.1 Dsg and I can't get pops...
I have changes:
CWSAWE (set to 1)
KFTVSA (2.55 from 4000 to 6000)
KFZWMN (-30ยบ from 4000 to 6000 rpm)

Is it necessary KFZW/WOP really?
I don't want pops all time that's the reason I don't modify KFNWEGM.
Am I in the right way?
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pablofrtdi
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« Reply #447 on: February 04, 2019, 02:28:34 PM »

Could you please shown us what was the error please?
Because I have a MED9.1 Dsg and I can't get pops...
I have changes:
CWSAWE (set to 1)
KFTVSA (2.55 from 4000 to 6000)
KFZWMN (-30º from 4000 to 6000 rpm)

Is it necessary KFZW/WOP really?
I don't want pops all time that's the reason I don't modify KFNWEGM.
Am I in the right way?

I have got pops!!. My problem was CWSAWE... I had it in the wrong address..
Interesting question:
Why from 4000 to 5000 rpm the ignition follows KFZWMN and above 5000, it's follows KFZW?
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Kacza
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« Reply #448 on: February 05, 2019, 01:54:57 PM »

Has anyone done this in ME7.1.1 3.2VR6?
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slklite
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« Reply #449 on: February 06, 2019, 04:11:40 AM »

Hello guys, I have successfully implemented this on a 1.8T ME7, but now I have a MED9 on an audi TT 2.0 TFSI (car has turbo back exhaust system with 3inch downpipe amongst other mods...)

File is 8J0907115 (0261S02084) 386455

I have managed to find a few maps already.

I was wondering if someone could confirm what I found and help me find the rest ?

Here is what I found :

1CA0A9 : CWSAWE
1CD3B0 : KFZWOP
1D2340 : KFNWEGM_0_A
1D2368 : KFNWEGM_1_A
1D2390 : KFNWEGM_2_A
1D23B8 : KFTVSA
1D9D06 : KFZWMN

Thanks.
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