MED9.1 Tuning/FAQ/Help Thread

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majorahole

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #390 on: September 11, 2013, 06:54:14 AM »

i think this was covered in a thread about calibrating for rs4 injectors, or at least i would think the same process would be used


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Beaviz

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #391 on: September 19, 2013, 05:27:27 AM »

Quote from: hammersword on August 27, 2013, 09:29:05 AM

Greeks are here and they are watching you. Unfortunately for this excellent forum, sometimes someones says his wrong opinion of "how to tune this map" and then ALL the forum members marry with this opinion and they all believe that this wrong opinion is the correct path of tuning...

I will give you one example with KFMIRL map posted in page 23 of this thread. You uploaded a map which has settings of 335% at top RPM, then you say that
this value is over the "correct value"
this map has 191% limit on ME7 etc
etc

Have you ever seen any other ECU file than VAG ME7 or VAG MED9?
e.x. on Fiat/Abarth - ME7
Abarth 1.4Tjet with 155hp is set from factory the KFMIRL @ 289%
Abarth esse esse with 180hp is set from factory the KFMIRL flat 250% at top line, also KFMIOP from factory set 100% at top line

Opel 1.6T - ME7
KFMIRL from factory starts from 225% from low RPM and raises to 256% at high RPM

VAG 1.4TSi - MED9 (Golf 5 GT 170hp)
factory settings at KFMIRL 264%

So, in conclusion, you have to wonder why Bosch sets that high the KFMIRL, continue with reading the special Motronic docs. Do not stuck in the LOW LOAD factory engines like 20vt or TFSi that from factory work in load load (0.5bar or 0.8bar or 1bar)
Search and see other applications like Abarth 1.4T esse esse which runs from factory at 1.6bar/1.7bar, or Opel Corsa OPC 1.6T which runs from factory 1.4bar even though the VAG 1.4TSi which runs on the compressor area 1.3-1.5bar boost.

Search and learn WHY Bosch and Abarth decide to run 100% optimal torque and 250% KFMIRL on factory settings, read docs and you MAY understand.

Setting MAF max limit to 1250Kg/h? It is not wrong at all but 100% correct if you want MAX MAF limit to be deactivated. It depends on how the tuner wants his file to work and how many safety features wants to be running

Don't blame Greeks. And yes, we all know each other and the most of us we are friends and helping each other and note that we are in the same tiny Greek market!

So, I don't want to see more negative comments about Greeks

Kind Regards,
Fotis@Revlimit - Greek tuner...

Hi Fotis

Great that you chimed in!

I am by no means an expert in ECU tuning and still have a lot to learn(!), so I am just sticking to mostly what I read online and the small parts of the Bosch FR that I understand. That is also why I posted the questions so someone like you could comment - but obviously everybody does not agree here. Guess that is a good basis for a great discussion.

You have a lot of great examples of small displacement engines that runs high boost from the factory and the KFMIRL's are set quite high. But as I see it isn't that comparing apples to oranges? The 2L TFSI's are equipped with a rather small K03 turbo, so wouldn't asking for 335% load be way too much? The LDRXN is by the way in this particular tune (that is not made by you, if anyone should think so) "FF'ed", so that will not cap off the load.

In regards to 100% optimal torque I was wondering why the axis was not changed in the map as it only goes to 150% load but KFMIRL goes all the way to 335%. I was not questioning the 100% value.

Hope that you have some valuable comments, so I might learn something.


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hammersword

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Revlimit ECU tuning

	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #392 on: September 19, 2013, 06:48:18 AM »

In 2.0TFSi K03s like BWA or AXX etc:

KFMIRL at 335% is away far from reality. It is set too high. Wrong
KFMIOP at 100% @ 150%.... lol... Serious knowledge of Motronic logic is missed here, you can see this style in amateurs files!
LRDXN FFed.... hehe
I bet he tunes with Race EVO or ECM which both say:
KFMIRL = Specific airflow quantity
KFMIOP = Torque limiter
LRDXNs = boost limiters

He probably doesn't have any knowledge on Motronics!

About the Abarth esse esse example I did
Factory boost = 1.65bar @ 3100rpm --> Relative Motronic load 220%
KFMIRL factory settings = 250%
KFMIOP factory setting = 100% @ 240%

Some of you who has understand how torque model of latest Motronics works, will understand well also why Abarth/Bosch decided to set the Bosch ME7.9.10 ecu of this tiny Turbo 1368cc engine like this in factory factory settings....

For anyone who interested there are 3 different softwares for the Tjet engine
factory calibrated for 120hp, known as TJet 120hp
factory calibrated for 150hp, known as Abarth 150hp/Bravo 150hp/Mito 150hp
factory calibrated for 180hp, known as Abarth SS 180hp

If you know where to look, you can compare HOW FACTORY CALIBRATES THE MOTRONIC FOR HIGHER POWER/LOAD/BOOST LEVELS

I am not here to give you the fish in your mouth, I am here to guide you how to fish....

For any further info, without direct answers, I am here!

cheers,
Fotis


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The Motronic Specialists....

il_2evo

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #393 on: September 19, 2013, 11:39:20 AM »

Hi
I have a VW Passat b6 2.0 tfsi ECU Med 9
I removed the catalyst and I was highlighted error. I want to remove this error and the second lambda.
Could you look at my files when you have some free time.
I'm on the right track?
Thank you!


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matchew

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #394 on: September 19, 2013, 02:29:39 PM »

Quote from: il_2evo on September 19, 2013, 11:39:20 AM

Hi

{entitlement}

I'm on the right track?

No, you will get no where here by asking for things to be done for you, when you show no willingness to help your self by reading.


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il_2evo

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #395 on: September 20, 2013, 10:03:22 AM »

I'm sorry. I asked the wrong question.
With the help of this forum (Thank you for all this) I understand that you need to change the values
CDKAT
CWDLSAHK
CDHSH
CDHSHE
CDLATV
CDLASH
CDLSH
CDLSHV
CWKONLS
CLRHK
CLRKA
With DAMOS I changed those values.
And you, the experience of the guys wanted to ask the right I have changed.
Yes or no, any clue what else to do.
Thank you! regards


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mrompe

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #396 on: September 21, 2013, 12:03:14 AM »

Quote from: majorahole on August 26, 2013, 10:45:56 AM

it would be nice to know if that was the problem. i hate when someone asks for help then, never reports on if it worked

thank you for the fix! i know it has been a few months, but i was robbed and all my good tools were stolen from my garage... "battery charger" etc etc..
I built a bench harness and I should get the flash done sometime this weekend!

Thank you all for your hard work and i will report any problems!!!


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Nottingham

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #397 on: September 22, 2013, 02:01:28 PM »

Have I messed my axises for KFMIRL /S or does it go from 3-93%?

KFMIRL = 0x1CBA8E (Y = 0x1CBA56, X = 0x1CBA76)
KFMIRLS = 0x1CBC4A (Y = 0x1CBC12, X = 0x1CBC32)

Also any reason why the "ME7 Tuner Wizzard" should not be used for KFMIRL / KFMIOP (with corrected min - max range)?


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Nottingham

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #398 on: September 22, 2013, 02:02:50 PM »

The original bin for the post above.


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Nottingham

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #399 on: September 22, 2013, 03:43:18 PM »

Few more things.

In case where the lambda (specified & actual) do not follow LAMFA, is it usually because the EGT threshold (KFLBTS) has been tripped and the ECU switches to KFLBTS (instead of LAMFA) for fuelling?

The stock LAMFA map looks silly anyways, the values never go under 0.9063 (which would indicate that the KFLBTS used pretty much all the time).

The lambda values do not perfectly follow either of the LAMFA or KFLBTS maps, yet it is quite close to the latter one.
What about "KFLBTSLBKO", how and when does it interact with the previously mentioned maps?

Currently I am running way too lean in high torque areas and way too rich in the peak power areas.
The ECU however does not pull back the timing in the lean areas, the maximum timing pull between 2500-5500rpm is -3 degrees.

Could someone please check if I even have the correct offsets (for the file posted above)?

LAMFA = 0x1D4738 (Y = 0x1D471C, X = 0x1D472C)
KFLBTS = 0x1D29B2 (Y = 0x1D2C9C, X = 0x1D2CAC)
KFLBTSLBKO = 0x1D2A72 (Y = 1D2C9C, X = 0x1D2CAC)

Any help is highly appreciated


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Nottingham

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #400 on: September 29, 2013, 03:05:48 AM »

I could really use some help here.

Now the lambda is back in control and pretty much right where it should be.
Around 12 AFR for the maximum torque and 11 AFR for the maximum rpm to keep the EGTs reasonable.
I adjusted both LAMFA and KFLBTS, right or wrong it works anyway.

Now there is another issue.

Since I want the peak boost to be around 1.3 bar I had to increase the load requested by the KFMIRL.
The axises were not rescaled, only the values.

The changes to KFMIRL were properly reflected in KFMIOP also, it is mathematically correct.

After changing the KFMIRL and KFMIOP the car pulls very smoothly and steadily, much better than before.

The issue which appeared after these changes is that the WGDC is now all over the place.
After the initial boost spike the WGDC does no longer follow KFLDIMX or KFLDRL.
Changing the values in either table in either way does not make any major difference.

The WGDC drops down to 44% at higher RPM and the requested boost cannot therefore be met.
In this specific RPM / boost area the requested WGDC (KFLDIMX) is 50-80% (I've tried them all).

So what kind of a mess have I made?
Even the smallest crumbs of information are highly appreciated

Attached a log from one of the pulls and the new KFMIRL / KFMIOP maps.
I have smoothed the LDRXN afterwards to get rid of the boost spike at that region.
Currently it results around 0.1bar overboost at 2560rpm, yet it made absolutely no difference in the final result.

Just double checking, eventhou the software has KFMIRLS and KFMIOPS maps there is no need to change them in cars with a manual gearbox (DSG only)?


« Last Edit: September 29, 2013, 03:12:28 AM by Nottingham »	Logged

Beaviz

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #401 on: October 01, 2013, 11:58:26 PM »

How much boost is safe for a K03 through the RPM range (car has 3" DP, full catback and APR HPFP)?

I could really use a little help to get my LDRXN specified correct.

If possible I would love to see examples of well functioning LDRXN's for K03's!


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Beaviz

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #402 on: October 03, 2013, 09:26:26 AM »

Quote from: Beaviz on October 01, 2013, 11:58:26 PM

Any comments to my first go here?

I found the compressor map for the K03 and tried making the LDRXN based on that and just some basic information about how much APR, Revo and other companies boost.


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Nottingham

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #403 on: October 03, 2013, 07:35:31 PM »

The K03 starts to wake at 2000rpm (delivers around 0.28bar) and is fully awake at 2800rpm (around 1.4bar).
Since the boost delivery is very aggressive (at 2000-3000rpm) you want to compensate that by adjusting the WGDC and LDRXN slighty before the turbo is fully awake, to prevent excess spiking.


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Beaviz

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	Re: MED9.1 Tuning/FAQ/Help Thread « Reply #404 on: October 04, 2013, 01:02:33 AM »

Quote from: Nottingham on October 03, 2013, 07:35:31 PM

Thanks man!

So I should lower LDRXN a bit between 2500-3000RPM and correct KFLDIMX to prevent huge boost spikes?


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