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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > 328's N52 ECU Successfully Tuned by CS Tuning/LET Motorsports



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      11-29-2009, 09:10 PM   #925
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They will if they know what to look for specifically. Usually when they do a re-flash or upgrade, they just do it without really poking around.
Its really just a tad bit more complicated than that. I saw the programming that Tony did when he flashed my car as the "test" car. He was tweaking things and it took a while just to do that (meaning like 30 min per minor "tweak"). There are like 25 different folders you can tweak things in and even through all of those, there are sub folders of specific areas. Its pretty damn complicated.

plus the areas that are changed for tuning aren't completely obvious so it would take a highly trained eye to see whats up.

My (and the LET/EC guys) best guess was if a tech did feel like the car was running too lean or something, they would most likely just perform a system update or reset of the ECU using the GT1 computer and see what happened when they did that. That would erase the flash and thus when the car looked to be running normally they would say it was "fixed".

That is really the only down side of the flash vs the piggy back. However, it very unlikely that they would even notice it in the 1st place.
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      11-29-2009, 09:15 PM   #926
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Doesn't LET/EC provide with a re-flash incase the dealer does overwrite the tune though (making that down side a moot point)?
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      11-29-2009, 09:19 PM   #927
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Doesn't LET/EC provide with a re-flash incase the dealer does overwrite the tune though (making that down side a moot point)?
Yes, however I keep hearing they charge you a small fee to do it (or at least their vendors are trying to). Tony never mentioned that to me personally but I guess others have asked about it (not sure who they asked though) and were told if it gets erased they need to pay something to get it put back on.
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      11-29-2009, 09:22 PM   #928
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Yes, however I keep hearing they charge you a small fee to do it (or at least their vendors are trying to). Tony never mentioned that to me personally but I guess others have asked about it (not sure who they asked though) and were told if it gets erased they need to pay something to get it put back on.
Ahh... yeah, that would be stupid to do since the tune itself is pricey. I was told by Jerry there wouldn't be any additional fees, but who knows if they have changed their policy now. I imagine there won't be many updates on an '06 though...
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      11-29-2009, 10:21 PM   #929
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nope and I've done it. Only way they can tell is if they go in and check the coding (which would take them about 10 hrs of labor to check all of it) so I would probably play the odds on this one that a dealership doesn't want to waste 10 hrs of labor and pay to a tech to do this... if the techs even know HOW to. I would think maybe only 1 or 2 per dealership would know enough to be able to even get as far as finding the coding.
FWIW if you ever throw a code/CEL with the flash, the freeze frame data saves all the actual parameters at the time of that code. So they are very easy to track. With a piggyback, like the JB3 or PBX, the ECU only sees the factory values and thus is invisible. Which has been proven time and time again by 1000s of customers. You just need to be smart about it and remove your mods if going in for some warranty claim. Not that it matters much either way with a 328, no one will suspect tuning or mind. Not exactly the same risk as doubling the boost on an N54.

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      11-29-2009, 10:54 PM   #930
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FWIW if you ever throw a code/CEL with the flash, the freeze frame data saves all the actual parameters at the time of that code. So they are very easy to track. With a piggyback, like the JB3 or PBX, the ECU only sees the factory values and thus is invisible. Which has been proven time and time again by 1000s of customers. You just need to be smart about it and remove your mods if going in for some warranty claim. Not that it matters much either way with a 328, no one will suspect tuning or mind. Not exactly the same risk as doubling the boost on an N54.

Mike
Interesting because I've actually thrown CEL codes (from my muffler delete) before and the techs have never said anything to me about them or them being associated with values that were higher than stock. I would assume no matter what code you throw as long as its a CEL it would still save the parameters, right?

I just really don't trust anything that masks the stock programming of the ECU from letting the car operate normally. By actually changing the stock programming with the same software that BMW uses to program the cars themselves, you are letting the car run under its normal operating conditions as far as the car/ecu is concerned.
Also, a piggy back doesn't change any of the allowed parameters in terms of things like emissions or things like that, which is why piggy backs of heavily modded cars often throw codes especially with mods like catless DP's on the N54. With a proper flash, you can expand those parameter values and don't even need an o2 sim because the values sent to the newly programmed ECU are within range after they are changed.
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      12-03-2009, 01:49 AM   #931
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Just saw this thread in 1Addicts. A member went into the dealership with Map 0.

http://www.1addicts.com/forums/showt...85#post6303685
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      12-03-2009, 02:08 AM   #932
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That post doesn't prove anything. The guy went to the dealership for a tire change...
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      12-03-2009, 12:37 PM   #933
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yeah i don't really see why that was relevant. They didn't see his PBX... doesn't mean they won't always overlook it.
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      01-23-2010, 12:34 AM   #934
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UPDATE

So just wondering if anyone else has gotten the tune and what they think about it? I know the PBX has gotten popular but I still love this tune and it feels even a touch stronger with the cold weather right now.


Any new LET/Eurocharged fans?
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      01-23-2010, 01:42 AM   #935
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oh and in case any of you were wondering what the Eurocharged guys were up to lately...
[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/yIesY_p1jY8&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/yIesY_p1jY8&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/u2b]
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      02-17-2010, 09:31 PM   #936
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That video is sick!
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      02-17-2010, 09:55 PM   #937
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yeah
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      02-18-2010, 12:10 AM   #938
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oh and in case any of you were wondering what the Eurocharged guys were up to lately...
[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/yIesY_p1jY8&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/yIesY_p1jY8&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/u2b]
Nice! I was lol'ing on how fast this is with a simple supercharger and tune.
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      02-18-2010, 12:39 AM   #939
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Nice! I was lol'ing on how fast this is with a simple supercharger and tune.
yeah, its seriously like The Fast and the Furious fake movie quick going from 60-120mph in like 4 sec
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      09-10-2012, 09:57 PM   #940
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What happened to this thread?
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      09-10-2012, 10:57 PM   #941
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What happened to this thread?
It was a 2 year old dead thread until you necro'd it...
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      09-12-2012, 08:04 AM   #942
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ya what do you need to know?
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      06-17-2013, 07:56 PM   #943
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Kinda late on this one but is the tune still available?
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      06-17-2013, 08:58 PM   #944
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Kinda late on this one but is the tune still available?
Check with Eurocharged, they are local to you!
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      06-18-2013, 05:12 AM   #945
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I hear this thread needs another Paul bearer.
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      06-18-2013, 09:21 AM   #946
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I hear this thread needs another Paul bearer.
sounds like you're volunteering
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