EDC17 audi A5 3.0 tdi

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EDC17 audi A5 3.0 tdi

Postby marottja » Fri Jun 02, 2023 11:08 pm

Hello everybody,
I got the original file with ktag tricore boot mode and patched for future obd use, then I modded it with ecm titanium.
It's my first time I try to modify ecu file, does it look ok or am I doing something terrible?
So if my changes are ok, can I write it back still using ktag without problems with checksum?
I attach the original file and the one I modded, hoping to get a little help :-)
Thanks in advance.
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Re: EDC17 audi A5 3.0 tdi

Postby Shooting » Sat Jun 03, 2023 10:06 am

marottja wrote:Hello everybody,
I got the original file with ktag tricore boot mode and patched for future obd use, then I modded it with ecm titanium.
It's my first time I try to modify ecu file, does it look ok or am I doing something terrible?
So if my changes are ok, can I write it back still using ktag without problems with checksum?
I attach the original file and the one I modded, hoping to get a little help :-)
Thanks in advance.


This isn't even a tune, missed lots of maps, this ecu uses multiple maps for different situations,
you have only altered one or two of each.
Your Torque limiter will probably never go as low as 700mbar, you also need to change 800, 900 & 950mbar.
Only one Divers wish altered, there are 5.
Only one N75 map altered, there are 8.
Turbo boost has 8 maps not 2.
This tune has "0" extra HP, it's not a tune.



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Re: EDC17 audi A5 3.0 tdi

Postby marottja » Sat Jun 03, 2023 2:23 pm

Thanks for your answer, so I want to alter all maps (for instance turbo) present in the driver or is it better to write the similar maps once I change the first one?
I thought torque was expressed in NM.
I am just trying to understand and willing to play with my own car, of course it's not what I do for a living otherwise I'd be starving :-)

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Re: EDC17 audi A5 3.0 tdi

Postby marottja » Sat Jun 03, 2023 4:39 pm

Would this be any better? Again original and modded file
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Re: EDC17 audi A5 3.0 tdi

Postby Shooting » Sat Jun 03, 2023 5:01 pm

marottja wrote:Thanks for your answer, so I want to alter all maps (for instance turbo) present in the driver or is it better to write the similar maps once I change the first one?
I thought torque was expressed in NM.
I am just trying to understand and willing to play with my own car, of course it's not what I do for a living otherwise I'd be starving :-)


The Torque limiter is, but it has more than one for different air pressures, you just altered the lowest.



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Re: EDC17 audi A5 3.0 tdi

Postby Shooting » Sat Jun 03, 2023 5:06 pm

marottja wrote:Would this be any better? Again original and modded file


I think you need to read a lot more, this mod has estimate 1hp more than stock.



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Re: EDC17 audi A5 3.0 tdi

Postby marottja » Sat Jun 03, 2023 7:48 pm

You're right, better for me to read a LOT more. Thanks for your help

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Re: EDC17 audi A5 3.0 tdi

Postby marottja » Sun Jun 04, 2023 8:59 pm

Ok I succeded to modify and write back the map without breaking the car, that's already a success for me.
This is the modded and original map in the attach, is still so terrible?
Can you give me some hint how to change and improve it? I'm not asking for the job done, just some suggestion from experts.
Thanks in advance.
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Re: EDC17 audi A5 3.0 tdi

Postby Shooting » Mon Jun 05, 2023 3:38 pm

marottja wrote:Ok I succeded to modify and write back the map without breaking the car, that's already a success for me.
This is the modded and original map in the attach, is still so terrible?
Can you give me some hint how to change and improve it? I'm not asking for the job done, just some suggestion from experts.
Thanks in advance.


A massive improvement, tho your Torque limiter needs smoothing, its very erratic at 4500 rpm.


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Re: EDC17 audi A5 3.0 tdi

Postby marottja » Tue Jun 06, 2023 12:10 am

Thanks a lot, meanwhile I did something else very stupid, you know at 1am it's not time to play with ECU, so last night I tried to modify the map posted above making it more aggressive, the result was that I broke a pin of my ECU. Ok you all can laugh at me, I deserve it.
Today I fixed the ecu, bypassing the broken pin and tried the aggressive map.
I think it's too much and wrong, the car surely shows more muscles but it looks like a chimney. I'm quite sure that it's better for me to load another more conservative map.
What do you think about this map? Of course I'm ready to be the one you can make fun of, makes sense and I deserve it:-)
I'm a newbie prolly doing predictable mistakes, luckily for me I don't do this for a living but only for my own car :-)
Come on, I'm an easy target and I'd laugh with you, hopefully getting some hint between laughs and teasing.
Thanks again
I attach orig and last mod now in the car
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