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01-19-2016, 12:20 AM | #1 |
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Guide to electronic nannies and how to code them off
For a long time, a few guys on here and myself have been working on figuring out how to code off the electronic nannies that these cars have. Even with DTC an DSC off, there are still tons of safety systems in place - many of which I was not aware of until I started doing research.
Now that I have coded all of them off in my car, I thought it would be useful to compile the information into one place. This would have really helped me when I was trying to figure it all out. Things I have actually disabled and tested myself on the race track: Electronic Differential Engine Power Reduction to Prevent Brake Disc Overheating Brake Fading Compensation Hydraulic Brake Assist Maximum Brake Support Brake Standby Dynamic Performance Control Some of these are interfering everyday during normal driving, such as hydraulic brake assist. I didn't even notice it until I turned it off and had an "Eureka" moment. All of these things suck for track use and spirited driving. Some of these will not be new to you, but at least it is all written down for easy reference in one place with results of me actually testing the coding on track. You can read the full description of the nannies and the proper setting to turn them off here: http://www.onelapx1.com/the-story/ho...w-actually-fun Hope it helps! |
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01-19-2016, 09:26 AM | #4 |
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Yes, exactly. I highly recommend using NCS Dummy to get a read out of your TRC file first before going in and blindly coding, as the actual settings that correspond with "off" for some N54 and N55 cars are different. Or, Kgolf - you can just wait until spring and I can code them off for you!
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01-19-2016, 09:31 AM | #5 | |
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I have NCS Dummy, but I've always managed to do my coding without it just using NCS Expert. I guess I should probably figure out how to use it for this one, though! Funny that I'm having more trouble with the one program that is supposed to make the other one easier to use...lol. |
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01-19-2016, 09:50 AM | #6 | |
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01-19-2016, 11:13 AM | #7 |
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Who can do this in SoCal? I can provide pizza and beer.
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01-19-2016, 03:38 PM | #8 | |
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Thanks! |
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01-19-2016, 03:53 PM | #9 |
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Great research and write up! Do you know if any/all of these parameters are the same on the 128i? I guess I should do some research into coding at some point. I don't really have any mods done (yet) that would require any of this but it's great knowing about it in case I need it in the future.
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01-19-2016, 03:54 PM | #10 | |
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For Maximum Brake Support I need to double check, I did not have an abbreviation in my notes but I also don't see that parameter in my saved TRC file. I also don't see a "MBS" though so I will check tonight and update the blog if it is wrong. EDIT: I just checked and Maximum Brake Support is listed as "HVV" in the DSC file. So the parameter for my X1 is e84_HVV. Last edited by paradoxical3; 01-19-2016 at 04:41 PM.. |
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01-19-2016, 04:31 PM | #11 | |
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What would REALLY help me push this further is if someone could pull their TRC file from the DSC module and send it to me. You can do this using NCS Expert. If you can do that, I will post the 128i specific parameters. Actually, if someone could do that with the 135i too it would really help me. I coded a 135i with this but I never saved their TRC file to my laptop so I have no way of referencing this now. What I would really like to do is turn that blog post into a permanent and comprehensive list with the exact parameters from each BMW. |
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01-19-2016, 05:07 PM | #12 | |
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01-20-2016, 04:52 AM | #13 |
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Thanks, for doing the hard work!
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01-21-2016, 08:17 AM | #15 | |
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BTW, many thanks for putting this stuff together |
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01-22-2016, 08:01 PM | #16 |
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Thanks for posting this!
My brute force attempt at defeating all these nannie was pulling ABS main fuse; allowed for rotation during trail braking, but flat spotted the front tires as there was no biasing/abs. |
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01-25-2016, 01:36 PM | #19 |
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02-19-2016, 12:12 AM | #22 |
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I guess if I were you guys, I'd be asking for the traces from a 1M for comparison.
I'm just learning to code, very slowly due to software incompatibility. But the other night I was able to get into my DSC module. Using NCS Dummy it looked like there where various degrees of control, as well as off. What I'd be most curious about is how the 1M differs from the standard 1's? We know the M doesn't have the nannies turned off. So it should also be with out saying that 'tuning' the nannies might give the best/fastest results. |
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