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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 > What are the known tuner codes? That's all most of us care about.



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      05-03-2011, 01:30 AM   #1
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What are the known tuner codes? That's all most of us care about.

There is thread after thread cataloguing what all the different codes are, and trying to figure them out and people like me asking questions. I have searched and searched and what I would love to find is a thread marked:

Have you seen these codes? Better delete them!


I want to leave all the codes in so that when I have trouble the dealership knows what to do. I just wanna take out the little tattle-tales so let's cut to the chase, shall we?

What are they? Do you know any? Post here then pls.
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      05-03-2011, 01:34 AM   #2
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There are only two of them, both state "external tuning box detected" when triggered. Being that you can read both codes and their descriptions, you can read before you clear. No worries.
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      05-03-2011, 01:55 AM   #3
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Really? So what is everybody sweating about then?
It's like they are all gathered around trying to read tea leaves or something
and it's just freaking spelled out for us?

Seems waaaay too easy.
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      05-03-2011, 12:38 PM   #4
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2D25 - Mass Air Flow Excessive

Seems to be the most common tuner code.
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      05-03-2011, 03:02 PM   #5
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Quote:
Originally Posted by Well Marbled View Post
I want to leave all the codes in so that when I have trouble the dealership knows what to do. I just wanna take out the little tattle-tales so let's cut to the chase, shall we?

What are they? Do you know any? Post here then pls.
You can't clear individual codes. You can clear all, or nothing.
Standard approach is to uninstall tune, clear codes, and wait for the "desired" warranty codes to be rethrown.
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      05-03-2011, 03:07 PM   #6
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What about the manipulation code...
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      05-03-2011, 03:07 PM   #7
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That would be ideal, for sure. Sometimes tho time and circumstance don't really roll that way.
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      05-03-2011, 04:11 PM   #8
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Quote:
Originally Posted by Charleston335 View Post
What about the manipulation code...
What's that?
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      05-03-2011, 04:13 PM   #9
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2D18 is the manipulation code
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