NefMoto

Hi,

I've have a modified bin for my car.The psol is always 2550( as I know this is the maximum boost). I don't know why the ECU calculating that.
I've attach pictures about it. The first 5 pictures about the maps and the log. I modified only these maps and I got the last log. I don't know why the ECU calculate the psol for max at the first version of the software.

Can you help me? I read a lot of topics but nowhere found the solution.

Thanks

1) post actual logs

2) revisit KFMIRL and LDRXN

2 logs and kfmirl log attached.

thanks for the help

Try bringing ldrxn to reasonable levels. You wlll never see that load with stock turbos

The plan is maximum 1.4 bar. If I'm using the LDRXN value x 10 + 300 for plsol calculation 210 would be good. But the strange thing is when is set the ldrxn max to 170 the plsol will be 2550. I don't understand why.

Is is just a very rugh astimation, not good for setting PSOL to a  fix value.

try to recalculation the hole way ME7 calculates PSOL.
Then you will see, 170% filling at your dump is over 255hPa limit, because your KFMIRL is also bended an not linear anymore

Not sure about that, KFMIRL doesn't affect the load -> pressure calculation.

I am unsure why he is seeing plsol maxed.

KFLDRL at 100 is also stupid, I hope the maximums were not touched, you will burn solenoid.

Mhh, AFAIU KFMIRL is requested filling depending on engine_speed and requested load..
So, if you increase requested filling, you will at the end increase requested boost pressure PSOL.

He requestes at 100% load more then 220% filling, witch needs more then 255hPa to get this amound of filling..

Yes, quite true, but original KFLDRL, you will finde the same numbers.
I think, stock application will never touch 100%, so they don´t care ;)

No, it is requested load depending on engine speed and requested torque (pedal).
The load request to pressure conversion is not affected.

That said, yes, to get 220% filling you need more than 2.5bar. But if you look at his logs, he has requested load well below 200 at lower rpms but it is STILL requesting 2550mbar


Stock dc is always capped at 95% via DRL that I have seen. I could be wrong.

NEVER send 100% dc to a solenoid, as prj rightly points out.

The strange thing is when LDRXN has values with 220 and 230 the plsol is not fix 2550. When we set is back to around 170, the plsol will be fix 2550. The 2 binary difference maps are: KFLDIMX, KFLDRL, KFLDHBN and LDRXN. The changes can see at the first post. I thougt that KFLDHBN set is to max because it was 0xFF everywhere. Yesterday I changed only that table and set is to near the maximum what we want to reach, but plsol is always 2550 with that change too.
I got the binary from my friend car. He is using this tuned version for 10 years and 100000km. He doesn't have any problem, but I would like to make a good tune with limitations on. I wouldn't like to see when the turbo charge 1,8 bar :)
Maybe I will check all of the tables and calculate everything again.

How about start from stock file and don't waste everyone's time.

This.

Shot in the dark - are you sure you are logging the right variable?

I'm definitely wondering about this.

If you see 2550mbar as your boost pressure actual, then your map sensor is dead or not even connected... Have u even wondered about this lol.

His problem isn't actual, it is requested (plsol)

Yes we checked it with VCDS too. The plsol is 2550 all the time.

I try to recalculate kfmirl and ldrxn. For kfmirl I use to ME7 Tuner Wizzard. For the maximum boost 1,45 the max value is 205. At the excel sheet there is a generator function for kfmiop. Is it good to use that too? I read a lot of forum entries about kfmiop and kfmirl but I don't know how can I set kfmiop. Is it good to set the last column of the load axis to 205 and fill all of the values at that column to 94? The excel tool suggest 100.

Thanks for the help

None of your tweaking makes any sense until you fix plsol which has nothing to do with the maps you're messing around with.

ONE thing at a time.

In fact, i'd try stock LDRXN first.

If you check my first post, when I changed back to stock LDRXN, the PLSOL went to fix. With higher values the plsol is not fix, but lower than the required.

I have no idea what this means. 2550 is not lower than required, it is bad.

I am quite sure, somewere you bend rlsol_w in a case, that PLSOL is calculated more then 2550hPa..

If you limit rl_w via LDRXN to lower values, everything seems to work well. So IMO you only bend rlsol_w at high values, witch is normal way of non-linare tuning chances.

@nyet:
Can you pls. tell more precise, what you mean with "load" ?
Funktionsrahmen tells  KFMIRL request filling, so RLSOL_W depents directly form KFMIRL and at so the end PLSOL..

Where is my missunterstanding ?

If LDRXN has the values around 230 the PLSOL is not fix, it is around 1,1 bar. If I set LDRXN to 180 the PLSOL will be the maximum and fix.

1.
http://nefariousmotorsports.com/forum/index.php?action=dlattach;topic=14299.0;attach=25538;image
http://nefariousmotorsports.com/forum/index.php?action=dlattach;topic=14299.0;attach=25546;image

2.
http://nefariousmotorsports.com/forum/index.php?action=dlattach;topic=14299.0;attach=25552;image
http://nefariousmotorsports.com/forum/index.php?action=dlattach;topic=14299.0;attach=25556;image