totti
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« on: May 20, 2018, 11:29:53 AM »
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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
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nyet
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« Reply #1 on: May 20, 2018, 12:50:02 PM »
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1) post actual logs
2) revisit KFMIRL and LDRXN
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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totti
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« Reply #2 on: May 20, 2018, 02:27:56 PM »
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2 logs and kfmirl log attached.
thanks for the help
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nyet
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« Reply #3 on: May 20, 2018, 06:53:51 PM »
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Try bringing ldrxn to reasonable levels. You wlll never see that load with stock turbos
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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totti
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« Reply #4 on: May 21, 2018, 12:14:28 AM »
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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. |
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jochen_145
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« Reply #5 on: May 21, 2018, 01:40:06 AM »
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The plan is maximum 1.4 bar. If I'm using the LDRXN value x 10 + 300 for plsol calculation 210 would be good Is is just a very rugh astimation, not good for setting PSOL to a fix value. But the strange thing is when is set the ldrxn max to 170 the plsol will be 2550. I don't understand why. 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 |
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nyet
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« Reply #6 on: May 21, 2018, 08:48:24 AM »
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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. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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prj
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« Reply #7 on: May 21, 2018, 09:11:58 AM »
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KFLDRL at 100 is also stupid, I hope the maximums were not touched, you will burn solenoid.
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jochen_145
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« Reply #8 on: May 21, 2018, 10:19:13 AM »
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Not sure about that, KFMIRL doesn't affect the load -> pressure calculation. 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.. KFLDRL at 100 is also stupid, I hope the maximums were not touched, you will burn solenoid 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  |
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nyet
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« Reply #9 on: May 21, 2018, 10:23:36 AM »
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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. 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 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 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. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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totti
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« Reply #10 on: May 21, 2018, 02:09:47 PM »
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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. |
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prj
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« Reply #11 on: May 22, 2018, 12:02:46 PM »
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How about start from stock file and don't waste everyone's time.
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nyet
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« Reply #12 on: May 22, 2018, 12:45:17 PM »
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How about start from stock file and don't waste everyone's time.
This. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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woj
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« Reply #13 on: May 22, 2018, 02:29:22 PM »
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Shot in the dark - are you sure you are logging the right variable?
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nyet
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« Reply #14 on: May 22, 2018, 02:37:11 PM »
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Shot in the dark - are you sure you are logging the right variable?
I'm definitely wondering about this. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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