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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 > How to datalog?

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      05-22-2015, 06:01 PM   #1

Drives: 2009 335i Sport/Auto/Luxury
Join Date: Jul 2013
Location: Austin, TX

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How to datalog?

So I have a Cobb AP3 and I'm just short the FMIC of being FBO (it's in the trunk, I haven't had time to install it). I have this really strange hesitation at partial throttle midway up the tach, and the car feels like it's not boosting on occasion with no discernible pattern.

I have about 80k on the car, the last 20k being Cobb Stage 2 with the current mods. All plugs were changed at about 65k miles, and two of the coils have been replaced for misfires since the tune.

So I figured I'd post the datalogs so some people much smarter and more experienced than me could share their opinions. Except that I've no idea how to do that.

So, um, if it's not making me look too much like an idiot, how do I set up the datalogging? I know I'm supposed to make a WOT pass from 2500 to redline in 3rd gear, but does that apply when part of my problem is a partial throttle hesitation? Do I need to bring my laptop (I've got the AccessTuner Race software and the AP Manager installed, just in case)?

Thanks guys!

Edit: NM, found the how-to thread in a search: http://www.e90post.com/forums/showth...hlight=datalog
2009 E92 335i Sport 6AT - FBO with Inlets, full M3 control arm set, ST V1 coilovers - 440whp conservative daily tune on 93
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Last edited by Team503; 05-22-2015 at 06:08 PM.
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      05-22-2015, 06:45 PM   #2

Drives: 2012 Z4 sDrive35i M Sport 6MT
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I really need to make a video on this
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      05-22-2015, 07:16 PM   #3
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Drives: 07 335i E90 Sport
Join Date: May 2014
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Originally Posted by BuraQ View Post
I really need to make a video on this
That would be great! I am new to Cobb a few months ago and need to catalog before protune....
07 335 E90
ATM stepped FMIC
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Cobb V3 - Stage 2+FMIC Aggressive
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