turbojohan
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« on: August 02, 2019, 11:30:44 AM »
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Is there anyone here who can help me to get diagnostic actual boost limit higher in a MED9?
In a CDL 1K8907115F ecu it is 4000 mbar stock and in AXX, BWA, CEPA etc it is 2550 mbar.
I want to do a CEPA RS3 with bit more boost in openloop and i would like to get this limit higher.
Of course i can just use a boostgauge and call it a day, but i want to know how this works.
There should be a formalnummer & normierwert for each measureblock of something, but can't get it figured out..
In KFMWNTK you can see what data every measureblock will give.
And can't find a lot more than that in damos..
Hope someone can help me in the right direction..
Johan
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teobolo
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« Reply #1 on: August 04, 2019, 10:05:42 AM »
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i think is a limit that can be bypassed only with ida and reverse engineering , i m trying to find it some year ago but not find it .
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gman86
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« Reply #2 on: August 05, 2019, 01:21:54 AM »
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Is there anyone here who can help me to get diagnostic actual boost limit higher in a MED9?
In a CDL 1K8907115F ecu it is 4000 mbar stock and in AXX, BWA, CEPA etc it is 2550 mbar.
I want to do a CEPA RS3 with bit more boost in openloop and i would like to get this limit higher.
Of course i can just use a boostgauge and call it a day, but i want to know how this works.
There should be a formalnummer & normierwert for each measureblock of something, but can't get it figured out..
In KFMWNTK you can see what data every measureblock will give.
And can't find a lot more than that in damos..
Hope someone can help me in the right direction..
Johan
Actual boost on MED9 will show up to 5120mbar. Will only ever "request" 2550 without ASM changes. |
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turbojohan
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« Reply #3 on: August 05, 2019, 01:25:29 AM »
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Actual boost on MED9 will show up to 5120mbar. Will only ever "request" 2550 without ASM changes.
Only on R20 CDL ecu. Rs3 and older 4cil tfsi ecu’s stop at 2550mbar. Verzonden vanaf mijn iPhone met Tapatalk |
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sonique
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« Reply #4 on: August 05, 2019, 11:02:20 AM »
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older tfsi engine stop 2550 because only 250kpa map sensor
change 3bar map sensor and not any problem
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turbojohan
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« Reply #5 on: August 06, 2019, 12:38:50 AM »
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older tfsi engine stop 2550 because only 250kpa map sensor
change 3bar map sensor and not any problem
On what ecu number did you test that? I've done many AXX's with 3 bar sensor and always stops at 2550 mbar iirc.. Now working on a RS3 CEPA and has 3bar mapsensor stock and stops at 2550 mbar. |
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sonique
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« Reply #6 on: August 06, 2019, 03:52:19 AM »
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1P0907115H
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gt-innovation
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« Reply #7 on: August 06, 2019, 09:22:07 AM »
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older tfsi engine stop 2550 because only 250kpa map sensor
change 3bar map sensor and not any problem
Really  ? Then no one needs a 5120hack and all of our problems are solved...Be serious and don`t spread misinformation. To Have proper readings you need to re-scale the map sensor limits. To have requested more than 2550mbar and correct diagnostic limits you need to properly patch the code + other stuff. |
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gman86
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« Reply #8 on: August 07, 2019, 10:25:31 PM »
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Only on R20 CDL ecu. Rs3 and older 4cil tfsi ecu’s stop at 2550mbar.
Verzonden vanaf mijn iPhone met Tapatalk
Nonsense. |
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nbdiy
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« Reply #9 on: August 12, 2019, 06:59:49 AM »
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Really ? Then no one needs a 5120hack and all of our problems are solved I think he Installs a 300kpa and adapts fueling then. This will work as long you won´t drive often in the Mountains, I think. But its also possible adapt other MAP-Sensors correctly, without 5120. I did a lot of FR-Reading for this. I tested it only on 2x 1,8T and 1x2,7T with ME7 1MB: 300kpa, 350kpa, and 400kpa, all were working fine, fueling tested with wideband. I think this will be possible on MED9, too, but never tested. |
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prj
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« Reply #10 on: August 12, 2019, 10:41:41 AM »
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LOL
Of course you can fit any MAP sensor.
But on MED9 your plsol is still limited to 2560 and ps_w calculation goes to shit after 2560 as well.
Doesn't get hard capped but doesn't work right either.
On ME7 pvdk is limited to 2560, you will never see more boost without 5120 mod.
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nbdiy
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« Reply #11 on: August 12, 2019, 10:07:34 PM »
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On ME7 pvdk is limited to 2560, you will never see more boost without 5120 mod.
Yes it is limited to 2550, an won´t show more in diagnosis. But its possible to fix load to boost calculation without 5120. And its possible for all sensor-sizes. But I´ve only tested it on these 3 cars yet. I actually run 350kpa from Bmw F-Series (cost only 25€) on my own 1,8T. Fueling is completley fine, even in mountains. |
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_nameless
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« Reply #12 on: August 13, 2019, 05:13:35 AM »
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Yes it is limited to 2550, an won´t show more in diagnosis. But its possible to fix load to boost calculation without 5120.
And its possible for all sensor-sizes. But I´ve only tested it on these 3 cars yet.
I actually run 350kpa from Bmw F-Series (cost only 25€) on my own 1,8T.
Fueling is completley fine, even in mountains.
whats your voodoo method then? briefly touch in the topic but dont elaborate? |
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Giving your mom a tuneup
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nbdiy
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« Reply #13 on: August 13, 2019, 05:34:53 AM »
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It´s no voodoo-method. I found only one value in ps_w calculation which can be changed without being picked up on another place in this calculation. This goes as well for the other calculations
I can post logs, there are absolutley no asm-changes, as I´m to stupid for IDA.
But I´m actually unsure if I want to post the solution
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turbojohan
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« Reply #14 on: August 13, 2019, 08:18:15 AM »
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It´s no voodoo-method. I found only one value in ps_w calculation which can be changed without being picked up on another place in this calculation. This goes as well for the other calculations
I can post logs, there are absolutley no asm-changes, as I´m to stupid for IDA.
But I´m actually unsure if I want to post the solution
I would like to see logs, no need to post how you did it. Of course you can rescale mapsensor with an offset so it has more requested boost. Verzonden vanaf mijn iPhone met Tapatalk |
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