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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > OpenFlash Tablet: In-Dash Boost Gauge and On-Board Datalogging



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      08-24-2013, 07:30 PM   #67
OpenFlash
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Quote:
Originally Posted by AWTT335i View Post
How do you think GIAC is successfully doing mapping changes on the fly with the handheld loader?
I suspect they are doing a lot more than just rewriting the usual tables ROM. I think they have written the code to have multiple boost limit tables that they switch between by changing a byte somewhere. I don't believe they are actually changing between full tunes (ie, changing all the tuning related tables). But I don't know for sure since that's not my area of expertise.

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