NefMoto

Hi. I was hoping one of the many knowledgable people from here could help me.

I have tuned diesels in the past, but wanted to learn this ecu. So I bought a cheap tt 1.8t to learn with. I started to study the many guides and posts related to me7.5 and soon found out that it is completely different to diesel tuning and I have a lot to learn.

I downloaded a few modified files to study, but they all seemed to be modded very differently and didn't know how much I could trust a downloaded file. So I got the car remapped by a local tuner so I could study a "good" file. But the car only produced a little extra power.

Upon studying the file it appears to be a safe but weak % tune.
 Maps changed were:
KFZWOP.  + 1.5-3.75
KFZWOP2 +1.5-3.75
KFZW.  + 0.75-2.25
KFLF.  - 0.0078-0.0234
KFLDIMX: gradual % increase from 3% at 300 hpa to 9% at 1000 hpa
KFLDRL:  gradual % increase from 2% at 20% to 9% at 100%
LDRXN. +25%
LDRXNZK +25%


Now I know frm reading that this isn't correct way to tune. (Or even correct maps).

So my plan is to start afresh with my original file and take logs each Time I make a change.
I was hoping someone could point me towards the best maps to alter first and variables to log
I believe I should tackle it in the order of
Afr
Boost/load
Timing advance.

But my damos file brings up a lamfa with strange axis and data. Is that why tuner edited kflf instead.

Car is a narrowband me7.5 1.8t 180 Quattro stock hardware except k03(s) turbo.
I am at sea level in uk and only use 99 Ron fuel.

Thanks for reading and sorry if it's been covered already. I'm just keen to learn and the first map I was going to change seems wrong.

All covered in the Stage 1 threads.  WOP isn't touched ever.

Thanks for reply. I thought that was the case. Although it seems to be changed in most of the files I have looked at.

Is there any chance you could point me towards the map that controls afr on my file as lamfa has strange values going from 1.9922 to 0.6250 and axis which is basically all the same. Most of the threads I have read use lamfa as afr control.

Thanks

Did you look at the wiki or have you just been looking on here?

https://s4wiki.com/wiki/Tuning

Oh and yes, it's common that LAMFA is out, it's a bad def or needs a lo-hi change type of thing;

(https://farm5.staticflickr.com/4428/36969019360_5909ab8dd3_c.jpg) (https://flic.kr/p/YjPTtw)BAD LAMFAS (https://flic.kr/p/YjPTtw) by Rick B (https://www.flickr.com/photos/146155164@N03/), on Flickr

Thanks again for replys. Yes i have read the s4 wiki several times along with the guide by ttqs and numerous other guides/threads but i think i struggle to learn by just reading and seem to get a grasp better if i try to put theory into practice. I think i now have a basic grasp of what i need to modify. Its just the lamfa map that is causing me issues atm. All of my load axis have 199.9969 and my rpm axis is all 10200.0. I dont know if map pack has wrong address? All other maps match up and look correct. Im sure i read somewhere that some files dont use lamfa for afr but use another map instead. But obviously there is alot of bad info online and dont want to adjust wrong maps again. Thank you again for help. Hopefully one day i will have the knowlege to help others.

Post up your file (and if you can, where you think it is) or we can show you. :)

Thanks again i have attached file. I believe lamfa is at 1BB5D with y axis at 1BB42 and x axis at 1BB51.

If you could point me towards it that would be great. Im still not able to find maps without the help of a damos/map pack. Unlike with diesels where i can find a map by searching in 2d mode and recognising patterns or text mode and looking at the  pattern in numbers.

So i have  to count on my map pack being right.

Thanks

 ;)

Thanks again for all the help. ive looked at that ols file marty. but it seems to be at same address that I had, and the data seems strange to me. it seems to contain mostly values of 1.9922 which is obviously incredibly lean. I'm probably being blind or stupid but I cant seem to understand it.

Thanks again for all the help.

Cheers mate that helped. Ive sorted my axis out. Y is at 1bb24,
And x is at 1bb34. But im struggling to find correct factor to make data look right.
Thanks again

Hope this helps.

Christian

16 bit hi/lo for x axis if it is jumbled, apart from that yeah you seem to have it right at a quick look

Cheers again everyone. That is exact same lamfa map i have. But i just always thought it was supposed to a value in the region of 1. 1.9923 seems incredibly high. Or am i missing something.

Thanks

It should be 1,001

Thats the impression i was under, but mine is full of 1.9923. I think its juat a factor/offset issue but cant seem to find out what factors i should be using. Mine looks like the top picture that RBPE posted.

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Here are properties I have.
Thanks

If I had to to guess, it is just regions where lamfa will be totally ignored, since target AFR is the minimum of several different inputs, none of the others ever being that lean.

Thanks for reply nyet. I dont think i understand what you mean. Are you saying that lamfa map i have is correct and i should modify the 1.9923 values?


Its just my lamfa is pretty much full of 1.9923's. Its only the 100% column that has data that looks like a lamfa map.
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I think the LAMFA section in the s4wiki does a pretty good job answering both of those questions....

In short, preemptive enrichment, which is really only needed WOT

Only had a quick look but these 512kb files are interesting to say the least!

DLAMKR is set at that figure, 1.99, so it's purposeful if that "hi" file is stock as yours matches it.

The maps you've said are right and that is your file I posted earlier but I used a 1mb file to define it, if your axis numbers are muddled up simply change the rl axis lo/hi<>hi/lo (x on mine, poss y on others).

It also goes lean at max nmot/rl compared with earlier across the line so plenty for you to be getting on with really there.