|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
How does Cobb get away without external power supply for flashing?
|
|
02-02-2011, 09:34 PM | #199 | |
Brigadier General
112
Rep 3,460
Posts |
Quote:
|
|
Appreciate
0
|
02-02-2011, 10:15 PM | #200 | |
Lieutenant
22
Rep 551
Posts |
Quote:
Firmware update to laptop then to ap took 5 minutes. Ap downloaded my stock rom in 8 min AP uploaded its stuff to the ecu in 10 min During the upload there wre all sorts of bells and whistles from the car and the fuel pump ran all the time it seems. After upload there was some clicking and i turned the ign off and on and had a cel whih is the usual one cobb said would be present. Cleared it and the cel went away but the actual code still remained when checked by cobb. Used my bt to check and had that 1 cel ONLY . Quick test drive showed no issues. Car feels the same off boost and spool up feels same but higher Calling it a night , logging to follow in the AM. ty Harry |
|
Appreciate
0
|
02-02-2011, 10:24 PM | #201 |
Captain
87
Rep 949
Posts |
Harry good to see you here. We know each other from the Mazda platform we just came from - shoot me a PM - chris i'll tell you who he is later - good people though.
|
Appreciate
0
|
02-02-2011, 10:31 PM | #202 |
Brigadier General
112
Rep 3,460
Posts |
|
Appreciate
0
|
02-03-2011, 12:48 PM | #203 | |
Major
23
Rep 1,179
Posts |
Quote:
now if methods were discussed (which they will not be).... then id have some issues to deal with. im not trying to snub anyones sales -- tune or otherwise, im interested in those that may face the consequences of uninformed decisions. when i started out in this industry there was no warranty -- u break it you buy it! no lease programs - you were owners, and accepted the loss whatever happened. but all this invisiblity stuff -- skirtting the warranty .. what BMW can see and what they cant talk is as misleading as a pitch from a insurance salesman. the car industry has evolved -- and so has technology -- so will the ability to circumvent some systems -- but i doubt all of them... since outside information of what goes on inside is scarce... just like everyone respects the vendors right to proprietary information -- why should a manufacturer be treated any different? disclaimer: these are personal views, and comments --- |
|
Appreciate
0
|
02-03-2011, 03:37 PM | #204 | |
Second Lieutenant
5
Rep 216
Posts
Drives: 2008 - 335i - Cobb stg 1
Join Date: May 2008
Location: Very Hot, Humid, Southeast
|
Thanks - that does add color for me. You'd probably like "cryptonomicon by Neil Stephenson."
I agree - people need to be aware that "invisibility" can change, even retroactively. With many disparate programmable computing devices throughout the vehicle, it is certainly possible BMW *does* have more info and insight than we've observed based on external actions (warranty/repair issues). They would know that if they leverage a formerly secret coding means to determine tuning conclusively, they will send every tuner to the drawing board and start the next cycle in the arms race. They could make a decision to watch and wait and take a few hits. I have experience with systems to detect and prevent certain types of online malicious behavior. We never reveal more than 10% of what we know forensically when we do discuss determinations. A significant factor in the reasoning is keeping the methods and signals secure. BMW could have a very similar thought process going on, such as: Well 1 major repair a week ... not worth exposing other data. I say all of this purely speculatively as far as what BMW actually does. However, my direct experience with large scale organizations supports the possibility. If you tune, you should at least beware and accept those risks. I think sb45 raises real risks (not certainties, IMO) for flash tuners. I suspect similar unknown risks are present for the piggy back users, as detecting the virtual reality mode into which the ECU is thereby placed wouldn't take much code either (BMW can and certainly has purchased 1 of each tune variant). In either case, tuner beware. Quote:
Last edited by BmwFanFL; 02-03-2011 at 03:48 PM.. |
|
Appreciate
0
|
02-03-2011, 05:30 PM | #205 | |
Major
23
Rep 1,179
Posts |
its hard to be against something i love to do..
there are solutions out that are good, but a little restraint goes a long way... keeping money in your pocket that could be used elsewhere, rather than facing a huge repair bill. there has been a paradym shift, from buying the car for the love of driving to creating the latest and greatest drag car. re-engineering the car, if you have the pink slip on it is sweet and no one should take that personalization out of the hand of the end consumer.. but the fact is a lot of these cars are going to be returned to the dealer, for the purpose of resale. its legendary, that a well kept BMW is worth its resale price, yes the fuel pump issue has been evident on the car for some time, but still in all there are more and more E9xs on the road despite the problem. go figure at the same time there is a tiny section of the market that is adventurous, and sometime the actions of the few affect the many... for the record i get a chance to see a lot of cars -- yes some with stickers from the major forums.. and we treat those people just like any other -- and sometimes moreso -- making sure we return their cars in the condition as delivered to us... so this isnt a "oh look he mods!! trip" -- some sweet rides are out there, but if push comes to shove -- there is no laying down and tapping out.. thanks for hearing me out Cheers!! Quote:
|
|
Appreciate
0
|
02-03-2011, 06:43 PM | #206 |
Major
55
Rep 1,166
Posts |
If theres anything Ive learned from reading this thread is that no tunes are safe to run on your car and if the dealer really wants to they can find a trace of the tune as in there is no 100% way you can clear ALL codes and make it as if there was nothing there, yes? or am i missing something very important? I have no background what so ever in tuning cars whats so ever btw...
|
Appreciate
0
|
02-03-2011, 07:47 PM | #207 |
First Lieutenant
13
Rep 322
Posts |
Like I said in another post... BMW found a booger on my dash and let me off lightly - thank the good lord - However, I was told if any booger ever presented itself on my dash or any other place in my car (bottom of the driver's seat is the first place that they check) - my car was gonna go straight to the BMW gestapo in Germany. Moreover, I was led to believe they get a huge bonus for voiding warranties. Think about stiffler looking for tail...
|
Appreciate
0
|
02-03-2011, 08:55 PM | #208 | |
Second Lieutenant
5
Rep 216
Posts
Drives: 2008 - 335i - Cobb stg 1
Join Date: May 2008
Location: Very Hot, Humid, Southeast
|
Aside from the assertion that a short flash cycle with optional stuff turned off and all but a dead battery should be fine, i think you summed it up fine.
Being moderate, avoiding engine and drive train risks, and being lucky can work out well. But don't bet dollars you don't have on invisibility, for both practical and ethical reasons. If I tune, lightly, I don't want normal injector, hpfp type stuff rejected. Obviously half shafts go too ;-) under normal use. If I boost to 22psi and fry something, i will pay, but only want tunes that don't do such things. Although I own the car, I also don't want to ever pass a time bomb to someone else. If I tune, and I might jump with Cobb stage 1 ease of use, I would realistically be pushing the car only a few minutes a week. Quote:
|
|
Appreciate
0
|
02-07-2011, 01:40 PM | #209 |
Lieutenant Colonel
693
Rep 1,611
Posts |
I have a new N55 135i and have been getting in a tuning mood lately. I like the idea of the Cobb more than the piggybacks at this point, mainly because of its ease of installation and removal for dealer appointments, and its screen displayed data logging abilities. But with the problematic nature of our HPFPs, and the possibility of getting a long term warranty on it from bmw like the N54s have, the last thing I want to do is jeopardize that warranty in any way.
Is the reason the piggybacks dont write to this FASTA area that the ecu does not perceive these reported driving parameters that exceed stock as exceptional when done so with the Piggyback because the piggyback 'tricks' the ecu into 'thinking' everything is 'ok'? Whereas with a Flash, limits thats are exceeded are 'perceived' as such by the ecu and therefore, recorded in this FASTA area which is non flashable and therefore, the data persists for dealers to examine if theyre in an examining mood? I would imagine that they may very well get in that mood when the car is brought in in Limp mode as a result of a potential HPFP failure. According to the bmw bulletin posted by Shiv on page 8 of this thread, and comments about it, theres an increasing awareness fostered by bmw about the dealers becoming more savvy about detecting aftermarket tunes on cars in for certain kinds of service. So much so that in an earlier post it was reported that bmw headquarters downloads this data themselves for the soul purpose of checking for tunes. This is all pretty scary stuff to someone who wants to acquire a tune, particularly because the likelihood of being in a code detecting situation due to failed HPFPs is, at some point, a virtual certainty! Does all this mean, bottom line, that the absolute only way to be undetected is with a piggyback? I need to find this out for sure before I take the bold step. thanks for any info on this subject.
__________________
Boostm3
'18 LBB MT M2 Exec pkg, Moonroof, Production 7/6/17 Last edited by boostm3; 02-07-2011 at 01:53 PM.. |
Appreciate
0
|
02-07-2011, 02:30 PM | #210 | |
Second Lieutenant
5
Rep 216
Posts
Drives: 2008 - 335i - Cobb stg 1
Join Date: May 2008
Location: Very Hot, Humid, Southeast
|
Boost,
I'm far from the most knowledgeable here in terms of actual tunes or even tuning, but I'll take a shot. This thread has discussed potential detection risks that would be more applicable to a flash. There *may* be measures in place, and certainly *could* be, for BMW to detect flashing. These could exist now (less likely) or be added in a future DME update. It is also known that certain piggyback behaviors, at times, throw codes that dealers/BMW would see. The common piggyback tunes have solved these known problems if you clear codes when directed. They also avoid most codes in the first place. In my reading, there are no confirmed cases of BMW seeing the after-effects of a flash or the after-effects of a current generation piggyback, when properly used and subsequently removed. In all cases, codes must be checked and cleared as needed, though most endeavor to prevent codes in the first place (and some have built in check/clearing abilities, while other used separate tools). Given that state of history, I don't think invisibility should drive your decision. *However*, at any time, even retroactively, we could find out that BMW can detect either or both types of tune. I'm not predicting that it will happen, but I am highly confident that it could happen, technologically speaking. Of course, it is an arms race, and the tunes may or may not find a way to defeat a new technique, should new information surface. The lack of evidence of BMW detecting tunes does not imply the lack of ability or information on their part. They may have the ability and not view it as a priority or in their interests. Quote:
|
|
Appreciate
0
|
02-07-2011, 05:15 PM | #211 | |
Lieutenant Colonel
693
Rep 1,611
Posts |
Quote:
But I digress.. Back to Dinan not honoring his exhaust warranty. He claimed that because the car had water injection, and because I was running 2 xtra psi, he would refuse to support the exhaust. This boggled my mind... Magnuson Moss states that to deny warranty coverage, the mod in question must be shown to have directly had negative impact on the part in question. I maintained that the Water Injection cools the charge, and therefore could not be responsible for the muffler weld blowing.. Same for the 2 extra psi.. How could that blow a muffler weld? ... But my argument fell on deaf ears. So, bottom line is, experience has taught me to be very wary of car and parts makers..... Ive found that occasionally, they will look for any opportunity to find ways to deny coverage. Certainly this is not true of all of them, but certainly was for Steve Dinan. BMW was much better.... Again, about 10k miles short of the end of my new car warranty, I discovered hairline crack in the driver side rear shock tower. Bmw, at no cost to me, took the car and gave it to a body shop of theirs, who welded in new shock tower tops, not just in the failed one, but in the other one as well, and gave me a loaner for the 5 days it took to complete the repair.. btw, that model had very weak shock towers, especially if running aftermarket suspension, which I was, courtesy of Mssr. Dinan. If the repair isnt done, eventually, the shocks wind up pushing right through the shock mount and into the trunk of the car.. So I was quite impressed with Bmw's repair, and their acceptance of the job for warranty coverage. Im planning on waiting for the N55 Cobb tune.. As a product I think its perfect for me. And if we didnt have HPFPs that were so problematic, it would be a no brainer. But since this isnt the case, Im going to have to give this very careful thought, and, be prepared, if I decide to go ahead with the purchase, to absorb the entire cost of a new HPFP if and when the occasion dictates, and any other engine related problems.. That just seems to be the potential reality.
__________________
Boostm3
'18 LBB MT M2 Exec pkg, Moonroof, Production 7/6/17 |
|
Appreciate
0
|
02-08-2011, 01:47 PM | #212 |
Captain
12
Rep 656
Posts |
I'm afraid I haven't read all the posts, but:
Decompiling something is a whole different ballgame. How fast do you think Siemens can spit out an ECU? It can be noted that decompilers in software are somewhat illegal. Anything is possible if you decompile. Cobb obviously has had practice with this, and this is different than connecting through protocol provided/limited by the manufacturer. |
Appreciate
0
|
02-08-2011, 02:33 PM | #213 |
Second Lieutenant
5
Rep 216
Posts
Drives: 2008 - 335i - Cobb stg 1
Join Date: May 2008
Location: Very Hot, Humid, Southeast
|
BmwFan was taken. So were the 3 or 4 things I tried next. I thought Fanny looked a little funny, so I grabbed it before someone else did. Life hasn't been the same since ;-)
True story, except for the life changing bit. |
Appreciate
0
|
02-08-2011, 02:38 PM | #214 | |
Second Lieutenant
5
Rep 216
Posts
Drives: 2008 - 335i - Cobb stg 1
Join Date: May 2008
Location: Very Hot, Humid, Southeast
|
I'm not sure how you conclude "decompilers" are illegal. If used contrary to a license agreement with reverse engineering provisions, it would be a civil issue. If used to get around certain media protections (DMCA), you could be right. I'm sure there would be other cases as well. In general, though, they are just a tool.
I'd be surprised if flash vendors haven't decompiled at least portions of the DME code. Of course, someone who learns the native instruction set of the DME doesn't even need a decompiler. They could potentially understand the DME from only a hex editor or dissassembler. This is unlikely these days, but possible. Quote:
|
|
Appreciate
0
|
02-08-2011, 03:28 PM | #215 | |
Captain
12
Rep 656
Posts |
Quote:
I did say "somewhat." Should we go to a dictionary to see what that means? OJ Simpson lost a lot of money civilly, (please go ahead and correct my spelling if it is wrong...) |
|
Appreciate
0
|
02-08-2011, 04:28 PM | #217 |
Major
23
Rep 1,179
Posts |
and the point is ??
just because you doubt my veracity, doesnt dismiss what you dont see... so best thing is to live with it. as for BS.... ive sat around for a couple of years -- not silently -- listening to all this invisiblity nonsense -- youre like a kid standing outside of a mansion and trying to guess whats inside, and pissed cuz no one will invite you in -- take a deep breath and think about it. |
Appreciate
0
|
02-08-2011, 04:38 PM | #218 | |
Colonel
60
Rep 2,014
Posts |
Quote:
|
|
Appreciate
0
|
02-08-2011, 04:58 PM | #219 | |
Lieutenant Colonel
693
Rep 1,611
Posts |
Quote:
IOW, what specificially is the part you dont believe?
__________________
Boostm3
'18 LBB MT M2 Exec pkg, Moonroof, Production 7/6/17 |
|
Appreciate
0
|
02-08-2011, 05:29 PM | #220 |
Major General
137
Rep 5,040
Posts |
is this FASTA for MSD80 and 81? If its just for 81, makes sense that they revised the hardware to accomadate it. Otherwise, the anti tuning codes would probably be a software upgrade only to the existing MSD80 unit. Anyone care to comment?
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|