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Thread: Surging

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    Surging

    Hi,

    I have this annoying problem since about a half year... When I am accelerating under 2000rpm the the feeling is like surging... Not really sure how to describe, here a short movie



    Mods FBO
    Cobb (all maps 1,2,2+)

    Maybe my forge dv are damaged?

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    Grab a datalog to confirm, but I'd bet you're getting boost oscillations.
    Click here to enlarge
    MOTIV750, MOTIV P-1000 PI, MOTIV/FUEL-IT! low pressure fuel system, AEM EMS/COBB AP, Aquamist HFS-3, ETS FMIC, SPEC stage 3+ clutch/SS flywheel, BC Racing coilovers and VMR wheels wrapped in Hankook RS3s.

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    Boost oscillations, unless something funky is going on. Cobb OTS boost curves aren't the prettiest or most precise things on earth. A protune would go a long ways towards fixing that.
    E88 N54 w stuff
    F30 335 X-Drive EBII....PPK otherwise Stock
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    same problem with my ptf pro tune...
    i will upload a log later

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    here a log

    datalog1.csv.zip

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    Put it in datazap.

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    Yes Reputation No
    Click here to enlarge Originally Posted by fabiano Click here to enlarge
    no.

    http://datazap.me/
    2011 E90 M3 \ Melbourne Rot Metallic

    Click here to enlarge

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    1 out of 1 members liked this post. Yes Reputation No
    oh that datazap was completely new to me, thanks!

    http://datazap.me/u/fabiano/surging

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    Yea, crazy WG oscillations.

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    Hi @fabiano, if we've tuned your car please feel free to email us the logs at any time and we'll get it addressed asap. There seem to be some throttle closures at low RPM. Should be an easy fix.
    Click here to enlarge

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    Click here to enlarge Originally Posted by dzenno@PTF Click here to enlarge
    Hi @fabiano, if we've tuned your car please feel free to email us the logs at any time and we'll get it addressed asap. There seem to be some throttle closures at low RPM. Should be an easy fix.
    +1

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    1 out of 1 members liked this post. Yes Reputation No
    What would be the fix for the throttle closures? i believe i am getting the same issue and i tried lowering dwp and wgdc but did not work...

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    Click here to enlarge Originally Posted by maximum96 Click here to enlarge
    What would be the fix for the throttle closures? i believe i am getting the same issue and i tried lowering dwp and wgdc but did not work...
    Anyone?

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    $300 and you can find out.

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