08-17-2015, 06:46 PM | #1 |
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Request for help from E84 Xdrive 28i M-sport owners
Send me your codes!
This time I'm hunting the elusive "performance control" programming. With any luck I'll be able to activate the 20/80 front/rear torque split on non-M models. |
08-18-2015, 04:27 PM | #2 |
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I am also interested to figure this out, because I'd like to keep the 20/80 split while deactivating the active differential braking and the corner braking part of the performance control.
I have an m-sport, is there any particular things you want to see from my car? |
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08-18-2015, 04:37 PM | #3 |
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VO list and XDSC module would probably be a good start. Also the full FSW_PSW would give me a lot to compare.
I'll see what I can come up with, but there might be some things I don't want to change based on differences between our engines and transmissions. Can't hurt to take a look, though! |
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08-18-2015, 04:40 PM | #4 |
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I was poking around in mine today and found a bunch of promising parameters. Including...
Diff_Lock AX_Diff_Lock e84_AX_Diff_Lock These are all aktiv on my car. Then there are various parameters like c0_diff_lock wert_00 Some of these are set to wert_00 and some are set to wert_02 My guess is that the aktiv and neicht_aktiv ones are the "master" settings while the wert ones are perhaps intensity levels or conditional settings. I will pull what I can and send it to you. I also have access to an AWD dyno that gives a readout of front/rear torque split that we can use to confirm changes. Thoughts? |
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08-18-2015, 04:59 PM | #5 |
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Diff_Lock
AX_Diff_Lock e84_AX_Diff_Lock All are aktiv for me, too. And only one shows up in a module: E84_AX_REF_DIFF_LOCK in XDSC. The other two maybe can't be changed unless you take something out of the VO. Looking forward to checking your files. Any differences I find will certainly be interesting. Oh, and here's a trick I've been using to make searching easier: copy your various module files into a new folder and change the extensions to ".txt". This will tell Windows to index the contents of those files and make them all searchable from the folder level. |
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08-22-2015, 10:51 PM | #6 |
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I have successfully coded off the e-diff as well as the performance control option with the help of Alex @ Alpine.
He specifically coded out the e-diff, performance control, and "brake disc temp too high, reduced power via DSC command." The car behaved flawlessly at mid ohio and I recommend everyone do this that has a mechanical LSD installed. |
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09-05-2015, 08:58 PM | #8 |
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Hi improvious - I figured out that the performance control option is called:
E84_FDB If you code this to aktiv, it will activate what you are looking for. If you want to disable the e-diff, code out E84_AX_REF_Diff_Lock in your XDSC module. Here is the trc file from my DSC, ignore that e84_ax_ref_diff_lock is set to aktiv...I was testing to make sure I could change it back and forth https://dl.dropboxusercontent.com/u/18682/FSW_PSW.TRC |
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