GIAC, ESS etc - do they trigger any tuner codes?

[Moo]

Can the manufacturers of 1M flash-based tunes confirm that no tuner codes are triggered?

Also, would BMW void warranty based on aftermarket springs, downpipes, air-intake, etc?

Thanks.

[rusty racer]

Two great questions. Will add 1 relevant question

Any tunes available yet with a coding module so you can return the code to stick before going in for service or warranty?

[carchrism5]

Originally Posted by rusty racer

Two great questions. Will add 1 relevant question

Any tunes available yet with a coding module so you can return the code to stick before going in for service or warranty?

ESS can

[Retrospect]

Originally Posted by rusty racer

Two great questions. Will add 1 relevant question

Any tunes available yet with a coding module so you can return the code to stick before going in for service or warranty?

RESEARCH man!

Like the other poster said.. ESS can.. GIAC can also with their handheld switcher. It's on the fly too and some people have done it while driving, like Mr. 5!

[mikewills]

^^Cool. Can manufacturers determine if the stock ECU tune was compromised, even after re-flashing back to stock. Perhaps a flag or trigger that users or tuners can't see.

[schlümpfy]

Somebody told me they can read it of the key data. Does anyone know if this is true?
Thanks

[sq86]

Originally Posted by mikewills

^^Cool. Can manufacturers determine if the stock ECU tune was compromised, even after re-flashing back to stock. Perhaps a flag or trigger that users or tuners can't see.

Yes BMW can tell if you had a tune. They may over look it but if you have a problem that they can relate back to the tune your warranty is done.

Intakes and exhausts are ok from what I have been told but I'd still get that in writing from the dealer just to be extra careful.

[eeghie]

Originally Posted by sq86

Yes BMW can tell if you had a tune.

Do you know how they can tell?

Does anyone have first-hand experience with their tune or even their reversed tune being detected by a BMW dealer? Especially on the E8X and E9X platforms.

While on the subject, for 1 M Coupe, the M steering wheel button seems to toggle between 2 different throttle/boost mappings. So could one change only one of these mappings and leave the other one intact?

THX, Eeghie

[SUBIMMER]

I flashed with ESS last friday and no codes whatsoever....The difference in power is much more noticeable than the stage 2 flash for my subaru STI.... I didnt know that BMW are able to detect the flash even after the ecu being reverted to stock, that is worrying to me and i would have thought twice before doing the whole setup..

[Dackelone]

I do not belive I have EVER read here a post from someone who was flash tuned
who had their BMW warranty voided.


I HAVE read here many with piggy tunes who have had their warranty voided. (because either the dealer found the piggy box or found the tell-tale evidence of broken tabs, wires, dirty covers moved around under the hood).


Which is safer?



PS: I think the only way BMW could ever tell you have a flash tune would be to download your flash tune and to read the line code line by line. AND only an engineer from BMW AG could do that. I think that chance is fairly rare at the dealership level. Only IF your car was being scrutinized by BMW NA or AG would they be able to tell - MAYBE.