NefMoto

Hi there,

I was wondering what the differences were between a ME7.1 and ME7.5 ECU. Both are from a Ibiza Cupra.

The reason I'm asking is because of this topic:
http://nefariousmotorsports.com/forum/index.php?topic=1675.0title=

The chip I'm trying to flash in my ME7.5 has an EPK with 7.1 stated.

I do not know if I would have any trouble writing it.
Don't want to brick  ;D

Thank you in advance!

IMHO you should try to build your own tune (using your stock file as a base) even using values from stock Cupra tune. That way you can get even more then stock Cupra power/torque level safely and understand how your ECU works doing that.

You're absolutely right. Thank you for your answer.

Problem is though that my base file has a crap definition file / map.
The Cupra R (and AQX engine) definition file I have is far more elaborated.

I would like to continue on that Cupra R tune because it would be far more easy for me because I won't have to search all the maps.

Do you think there is a chance I'll brick the ECU when writing the R tune?
As stated in the topic the engine codes / hardware is the same.

Thank you for your help!

Noone told DIY way is simple ;)

Defining your file on your own is good way to understand how the ECU works and possibly will help you to tune it better.

Haha  ;D

Thank you for your help. I have chosen your path and I've tried to identify as many maps as I could.
I have overwritten all found maps with the Cupra R values.

Would you mind checking if I have missed any maps?

These are the maps I have 'updated' and which have actually changed.

KFMIRL
KFPED
KFMIOP
KFZWOP
KFMIZUFIL
KFMIZUNS
TANSMN
TMNSMN
KFZW
KFFDLBTS
KFLBTS
KFMLDMX
KFTARX
KFTARXZK
LDRXN
LDRXNZK

I'm getting somewhere.. slowly.. ;D

I am not an expert in tuning those ECUs but if I were you I would double check also (all of those are mentioned in S4Wiki):
 - KFLF
 - LAMFA, ZKLAMFAW/ZKWLAFWL, TLAFA
 - CWLAMFAW, KFZWWLRL, FZWWLRLN, KFZWWLNM
 - KFLAMKRL, DLAMTANS, KFLAMKR
 - TABGBTS
 - KFLDHBN
 - KFLDIMX, LDIATA, KFLDRL

Alright, I have compared a standard AQX file with the Cupra R file and have double checked all the maps that were changed between the two.

Below are the maps that have changed.


I have changed my AYP file to incorporate all the maps that were changed.

Please see attached the AYP ME7.5 file  ;D
Hope to help someone with this.

I have tested the file and is working perfectly! Enjoy!

Looking at the changes I am not sure if both engines uses same injectors (as KRKTE and KVB are different). If I were you I would revert both to your file's stock values.

Yeah, you're right. The injectors of an AQX engine are smaller.
I have an AYP though. That was the thing and is why I opened this topic.

AQX - ME7.1 smaller injectors (280?) 156hp
AYP - ME7.5 bigger injectors (320?) 156hp
AYP Cupra r - ME7.1 bigger injectors (320?) 180hp

I wanted to know if I could chip a me7.1 file into a me7.5 ECU.
I have the middle one in the list.
I ended up using the values of the maps instead; as you suggested. My KRKTE is the same as the Cupra R, same values.

So basically I have a Cupra R now, with a ME7.5 ECU instead of a 7.1.

It was my mistake - I missed the part that those differences you listed are between 2 ME7.1 files not your ME7.5 file and stock Cupra R file.

Now it is time to improve fueling and ignition and to raise load request and limiters :D

Haha you're right! I think that is one step too far now, but will improve with time  ;D

At least I know the maps that need changing!
I just extreme them out a bit more!

Thanks so much for your help.