Boost creep & aftermarket internal waste-gate actuator
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This is a discussion on Boost creep & aftermarket internal waste-gate actuator within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; I have a 2011 WRX with TP catted DP and AEM Intake tuned by Torqued Performance. I threw P0244 the ...

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    Registered User younoleit's Avatar
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    Boost creep & aftermarket internal waste-gate actuator

    I have a 2011 WRX with TP catted DP and AEM Intake tuned by Torqued Performance. I threw P0244 the other night at high/speed RPM. I'd rather avoid the EWG as my car is a daily driver, and someone suggested that I go with the Turbosmart Internal Waste-gate Actuator and GS 3-Port EBCS to fix the problem. Has anyone had experience with this set up? Will the upgraded actuator fix the problem?

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    Moderator Donkey's Avatar
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    Probably just need to get the tune re-tweaked a little. The P0244 is just a general overboost code. It is not 100% indicative of a boost creep issue. A datalog would be able to show what the issue is.
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    Registered User younoleit's Avatar
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    Eric at TP said it was creep, and that he had tuned it correctly. He says the remaining problem is mechanical and can't be tuned out, but I have had other members of the community suggest an EBCS as a solution.

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    Master Baiter EJ257's Avatar
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    Post a datalog
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    Registered User younoleit's Avatar
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    What is the best way to upload an xcel file?

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    and the Funky Bunch Calvinball's Avatar
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    Quote Originally Posted by younoleit View Post
    What is the best way to upload an xcel file?
    Google docs.
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    ^This. Make sure you make them public.
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    Registered User younoleit's Avatar
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    I apologize I don't know how to use google docs

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    Registered User boone1186's Avatar
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    Quote Originally Posted by younoleit View Post
    I apologize I don't know how to use google docs
    I bet there is a how-to video on YouTube, just trying to help
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    Registered User younoleit's Avatar
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    Try this. This was right before the CEL.

    https://docs.google.com/file/d/0B6nu...N5b09jLWM/edit

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by younoleit
    Try this. This was right before the CEL.

    https://docs.google.com/file/d/0B6nu...N5b09jLWM/edit
    Was there something different that you sent Eric that he determined it to be "boost creep"?
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    Registered User younoleit's Avatar
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    Mainly throwing the CEL in the given circumstances.

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by younoleit
    Mainly throwing the CEL in the given circumstances.
    Did you send that log to Eric before he determined your issue was "boost creep"?

    From your OP, you experienced an overboost code on one occasion. Are you able to replicate the issue? In order to determine that you're experiencing creep vs simple tuning issue, we need to be able to see the information in datalogs.

    Boost creep occurs when the wastegate is unable to bypass enough air to prevent the turbine from building more boost.

    That is not shown in your datalog (your TD Boost Error is <.5PSI from ~3500-6000 RPMs). What you have in your datalog is a ramp up to your maximum boost pressure, a plateau, and then a taper; exactly what you would expect to see with a properly-functioning boost control system.
    Last edited by EJ257; 12-26-2013 at 08:01 PM.
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    Registered User younoleit's Avatar
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    I did. While I was never able to "catch it in the act," he said it was creep. Perhaps I have a loose hose? I have taken it into full boost since the incident, however I have not been bold enough to run the higher speed I believe would be required to draw the code.

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by younoleit
    I did. While I was never able to "catch it in the act," he said it was creep. Perhaps I have a loose hose? I have taken it into full boost since the incident, however I have not been bold enough to run the higher speed I believe would be required to draw the code.
    The log you posted...did you experience the DTC in the same gear?
    2005 WRX STi (Mods | Virtual Dyno)

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