NefMoto

Hello,

Completely ready to be shot down in flames for this one!

Does anybody know what the ME7.5 out of limits behaviour is?
EG When the MAP goes over the 2560 milbar limit what does the ECU do;

•   Doesn’t use the MAP value and uses known values to control the engine?
•   Uses the max or some other default value?
•   Something else?

I’m thinking if this behaviour is known then it might be possible to tune outside the ECU limits without using the 512 hack & bigger MAP sensor. It would probably mean that some of the PID control wouldn’t work when out of limits and set values would be required but set values already used in some scenarios.

You would also need some way of measuring the out of limit values.

fueling, load, and timing are all off when over the map sensor limit and boost pid doesnt work sense youre over the map sensor limits

Yep, by a long way.

Probably going to have to open the 512 can of worms.

If you can do this, you can do the 5120 hack.

I'm aware of what the 512 hack is and the principle behind it, but as where to start I'm at a bit of a loss.

IE Which maps to change for a ME7.5, double or half them etc

Any pointers\URL's to get me started, an example tune where it's already been applied would be nice ;D

first off its 5120 (meaning 5120millibar) are you writing it wrong because youre lazy or you have no clue? also look on the forum you think someone is going to spoon feed you lol, right.

There’s an awful lot to change and I'm afraid if I miss something the car might go bang, how can I mitigate the bang scenario whilst I work on the map?

Stay below 21 PSI and learn doing that.

Do you have rods btw?

New rods & bearings on order,

3 general questions;

- How do you know if you've missed a map or is it a case of if it's working it must be correct?
- When logging with VisualME7logger do you need to rescale the log file so it shows the correct pressure in the graph?
- Which is the preferred MAP sensor?

Thanks

Lazy, you have all description and answers on wiki and forum

Going for a 4 Bar Bosch 0 281 006 059 MAP.

The VisualMELogger data can be modified using the Expression Tab in VisualMELogger.

Still not quite sure how verify if the 5120 hack is working correctly? As I say if it works it's correct?

Any comments on the above welcome.

Thanks

Did you carry out the ASM changes?

Does it need ASM changes?

Of course it does!

I've located most of the maps etc that require changing (got 7 left to find, I think)

I'm using ME7.5 8N0906018H 0004

Are the ASM patches the same as required for ME7.1 8D0907551M 0002? If so how do I find the addresses for them?

Thanks

Please, stick to 21 psi until you learn ME7

Hello,

Could someone clarify that I have got the 5120 hack working correctly, I'm pretty sure it's working but would just like a second opion.

The car has 550 injectors, 4Bar FPR, hybrid turbo, full 3" exhaust & bigger TIP & air filter, FMIC & extra external fuel pump.

I'm seeing a fraction of a second boost spike on throttle let off, should this be expected running basicly a base factory map (factory map has edits for 550 injectors & 4Bar FPR) with these mod's?

In additon to attached files I'm seeing 1000mBar for measuring blocks 115 at idle for both pressure readings.

Thanks

Problably n249 removed?

N249 still there.

It's something to do with the N249 control and the 5120 hack as it was working fine before the 5120 hack, must of missed a map or doubled one when should have halved it or vise versa.

GWPLDU, LDUVS??

Uhhh.. were you only getting 50% throttle before you made these changes?

The fact that you're seeing sensible pressures after correcting the factors of pressure variables in the .ecu file suggests to me that at least some of what you've done has worked... but you either screwed something else up or started with crap.

The thing is, how are you or anyone else going to come to any meaningful conclusion when you throw 5120 hacks into a bodged 'base map' and take a single log??

Step by step:
* Create a map that works
* Log it
* Create a 5120 version of that map
* Log it
* Fit new MAP and change DSLGRAD, DSLOFS, whatever
* Log it

At each step: stop, think, analyse



Can you donate your engine to a museum or something? How has it lived this long?

Boost spike on let off is "normal"
My S4 done that in stock form, with k04 stock map and same with 5120... I even throw a new n249 without any change...friends RS4 same same story.

Some cars have no boost spike, others have, go figure...

Aardshok, I think you are getting me mixed up with someone else?

No, I'm not

Your right, I'm confused now???

The car is going fine, definitely not running at 1/2 throttle.

Some by product of the 5120 scaling? Edit the .ECU to correct?

I think I may have located the N249/boost spike issue, not scaled the KFSDLDSUA, I'll try it out & see what happens.

Don't ignore my comments about changing too many things. Take a step by step approach or you'll never know for sure what effect your changes had.

Your throttle may well be only partially opening - this means that it will close faster and N249 will have less time to react and cause boost spike when lifting.

That could all be bollocks but you can't know for sure unless you isolate all changes.

Thing is you can't really apply the 5120 hack one piece at a time, I think it's got to be something with the hack as it's exactly 50%.

Also it's a factory base map just with the 550 injectors & 4Bar FPR edits, with the hack on top, so no funny business to start with.

I'll see if I can find some of the 5120 logs posted and see what thier throttleplate angle looks like.

> I think it's got to be something with the hack as it's exactly 50%
It's not exactly 50%, it ramps up very slowly from 25%, peaking at 50%... very different.

Yeah, I'm done. Good luck

Think I've found the answer to the throttleplate issue, Mr Armageddon & Mr Boobietrap had the same issue (I'm assumming they are Mr's).


Mr Boobietrap wrote,

"my throttle plate was not opening to 100% on WOT.
Turns out there is a map called KFPLGUB which is used instead of ambient pressure for calculating pressure ratio across the throttle plate (used in throttle maps) if CWPLGU = 0.
Apparently on most cars CWPLGU = 1, hence this map is not mentioned in the 5120 hack threads, but on mine this was set to 0.
I think the solution is to either divide both the axis and the table by 2 or change  CWPLGU to 1. I've done both just to be safe and now the throttle behaves correctly."

The above together with the cahnegs to the KFSDLDSUA map I missed "should do it" fingers crossed.

Might get to try t out this afternoon, but the weather bad at the moment.

Appears to be working after the changes above, throttle plate, following throttle pedal & no crazy boost spikes on let off.

It's not running particularly well under boost over about 15 PSI, as it keeps pulling it's self back, this is probably due to the factory map not expecting the hybrid boost/load & the fuel not being completely dialled in for the 550's IE FVVKS etc.

Have to confirm this by updating the map with the previously running settings.

After applying the previous settings to the 5120 hack map, it all looks good, I'm restricting the boost via KFLDRL in a blanket fashion which accounts for the squirmy boost at present.

Have to fit the 4Bar MAP & uprated rods now :)

Some useful files, use at your own risk.

.bin updated with minor edits 29.01.2021

LDRQ0S was divided by 2. now multiplied by 2

KVLAD was divided by 2. now multiplied by 2

31.01.2021

Changed both LDRQ0S & KVLAD back to divide by 2 as after a test run the car didn't run well at all.

Look at post of 05:34:02 AM 1st Fed 2021 for .bin with 4Bar MAP sensor Bosch 0 281 006 060/0 281 006 059, 550 injectors with 4Bar FPR & hybrid turbo.

Hi IWay.
Some issues in your file:
LDRQ0S must  Multiply by 2 , you divide it.
KVLAD must  Multiply by 2 , you divide it.
FHOKH - Set to 0(in addition to the fho_w ASM division) , here i'm a little confuse. you divide it with 2
You put KFPLGUB in 5120 category but is not modified. Do you think it must divide hpa axis with 2 ? I found it in other files unmodified!

Tao13,

Thanks for your diligence in checking my settings, always a good thing to have a second set of eyes look at something.

Don't pay too much attention to my XDF layout as it's a bit of a mess and needs tidying.

Yep, those are the values I'm using, they are in the spreadsheet above. I found them by searching for the original posted values for other box's in the HEX of the .bin, there are 3 others of the same value, don't know what these do (in the spreadsheet)?

I had taken the multiply or divide from the s4wiki - https://s4wiki.com/wiki/Manifold_air_pressure:Rescale_project

LDRQ0S must  Multiply by 2 , you divide it. I've changed this

KVLAD must  Multiply by 2 , you divide it. I've changed this, looked at my log from yesterday and its reporting correct air mass (210 g/s), I'll see what happens now it's changed

FHOKH - Set to 0(in addition to the fho_w ASM division), here I’m a little confuse. you divide it with 2 s4Wiki - Divide by two or set to 0, I divided it, when I'm happy with the rest I'll try setting to 0 and see what happens

You put KFPLGUB in 5120 category but is not modified. Do you think it must divide hpa axis with 2 ? I found it in other files unmodified! Problem with throttle plate only opening to 50% see below;

Mr Boobietrap wrote,

"My throttle plate was not opening to 100% on WOT.
Turns out there is a map called KFPLGUB which is used instead of ambient pressure for calculating pressure ratio across the throttle plate (used in throttle maps) if CWPLGU = 0.
Apparently on most cars CWPLGU = 1, hence this map is not mentioned in the 5120 hack threads, but on mine this was set to 0.
I think the solution is to either divide both the axis and the table by 2 or change CWPLGU to 1. I've done both just to be safe and now the throttle behaves correctly."

Setting CWPLGU = 1, appears to have worked with out changing the KFPLGUB map

4Bar MAP should arrive today, might get the chance to install today & test if not tomorrow, I'll post how it goes.

Before yesterday i worked with 032hs file starts by justinw.....it works ok but with some issues about idle.
It is a greate difference between 032hs and bam file. I used the same modified tables for load/torque/boost/timing/fuel, but bam 5120 hack file is very aggesive, like throttle is forced. This happend after made CWPLGU = 1, because confirm with it =0 the throttle is cut from 65 to 40% and the boost is half like it must be.
Yesterday i modified my BAM stock file with 5120 hacked modifications trought comparation with other files and xdf's, because i declare sincerly , i don;t know asm.
Today like as a connection, you posted the file. I confirmed the modification is ok. I hope (because i don't know asm)  it doesn't exist some other hidden modification in file for 5120hack, than that 1013 divisions.

Hi IWay. Do you tried FHOKH - Set to 0? Something happen? What value do you use for KISRM?

http://nefariousmotorsports.com/forum/index.php?topic=9221.msg81459#msg81459

tao13,

Changed both LDRQ0S & KVLAD back to divide by 2 as after a test run the car didn't run well at all.

Haven’t tried FHOKH - Set to 0, KISRM set to 0.065002.

Installed 4Bar MAP sensor and took for test drive was OK-ish, the only things I changed from the working 2.5Bar MAP sensor were the DSLOFS & DSGRAD to account for the change in MAP. I also changed the KFLDRL, see attached pics.

All appeared well but reviewing the logs the WGDC was stuck at 5% on the 4Bar config?????
Might be something peculiar about KFLDRL going up in single digits?????
Going to test with the same KFLDRL and see what happens.

KVLAD must multiply by 2 like wrote in txt project file not devide!
You must calculate dslgrad and dslofs for 4bar map sensor and after for 5120hack must devide both with 2.
What map sensor do you have? Witch code?

About that 2 tables in my opinion they are shit, doesn't had any effect to the car runing and logs and turbo and throttle? So without effect for me!

It makes a big difference, I know this from experience. Particularly on part throttle.. and that's with standard turbo/wastegate.

It's easy to set these tables after making a run with 0% DC

Thanks for you opinion, but sincerly for my custom settings for a garrette wastegate and a gt2871, doesn't matter these 2 table how are set......the car run and log the same! i adjusted from 0 to 100% these table and without effect!

Appears to all work now with 4Bar MAP sensor Bosch 0 281 006 060/0 281 006 059.

In the log & bin attached I’m limiting the boost via KFLDRL, while testing, which explains the squirmy boost profile.

Bullshit.

But if your car is tuned like shit anyway, then of course you don't notice when throttle is going bananas.

Ya ya...fogot here are too greate tunners.
My tuned file is shit but these maps are shit too, sincerly like me7 ecu is too.

Hi Iway 060 is different than 059. I found 2 pdf with specifications for them and result different values. With my 059 i had an idle vaccum on vcds -0.8 and normal is -0.6 on the gauge or with my non hacked file.

Apparently one is the Bosch P/N and the other is Audi's OEM Bosch P/N as per the attached PDF.

Use this DSLGRAD and DSLOFS insted, 437.5 and 31.25