forcedinductiongt Posted October 10, 2013 Author Share Posted October 10, 2013 datalog 10= idle datalog 15=100% datalog16=45%datalog10.csvdatalog15.csvdatalog16.csv Link to comment Share on other sites More sharing options...
PtPixel Posted October 10, 2013 Share Posted October 10, 2013 Those logs look fine to me. Did you reset your ECU after fixing the vacuum leak? You've still got high AF learning at idle, if you haven't reset then do that and after a while driving see what the learning values reset to. Did you get the flutter on the 45% run? Can't see any reason from the logs for it. Does this flutter only occur on acceleration when building boost and in all gears? Is there no noise when maintaining speed at 2.5 rpm? What about accelerating slowly without any boost? Link to comment Share on other sites More sharing options...
forcedinductiongt Posted October 10, 2013 Author Share Posted October 10, 2013 I didn't reset the ecu yet, and I got the flutter until about 3000 rpm on the 45% run. I can hear the flutter the best whenever I'm accelerating under 3,000rpm Sent from my SPH-L720 using Tapatalk now Free Link to comment Share on other sites More sharing options...
PtPixel Posted October 10, 2013 Share Posted October 10, 2013 By best do you mean you can't hear it at all without acceleration? Does it need to be aggressive enough acceleration to build boost to hear the flutter? Link to comment Share on other sites More sharing options...
forcedinductiongt Posted October 10, 2013 Author Share Posted October 10, 2013 I hear it the loudest under very mild acceleration until about 3000rpm, then it turns into a whistle. I hear it slightly when I'm cruising at about 2500 rpm. Under very heavy acceleration, I only hear it for a second, then it turns into a whistle Sent from my SPH-L720 using Tapatalk now Free Link to comment Share on other sites More sharing options...
PtPixel Posted October 10, 2013 Share Posted October 10, 2013 Whistle eh... air must be escaping somewhere. Not a mechanical kind of whistle but an air escaping whistle right? Your fuel trims, WGDC and boost don't look like you're losing boost anywhere, possible exhaust leak from installing the new DP? Once your ECU has re-learnt fuel trims then that can eliminate a boost leak. Link to comment Share on other sites More sharing options...
forcedinductiongt Posted October 10, 2013 Author Share Posted October 10, 2013 No not a leak whistle, just a turbo whistle Sent from my SPH-L720 using Tapatalk now Free Link to comment Share on other sites More sharing options...
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