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Title: LTFT issues on narrowband TT225's Post by: Matt@GTS on July 08, 2013, 07:54:56 AM I have noticed that narrowband TT225's have LTFT issues. A lot of binaries have LTFT's disabled via NOLRA. When enabled, they don't work properly, which must mean there is something wrong with the adaption settings.
Has anyone else run into this? Title: Re: LTFT issues on narrowband TT225's Post by: Carsinc on July 08, 2013, 07:33:17 PM Well I can tell you that 034 motorsports and unitronic get around all this by converting to wideband front 02,
Its pretty easy and a hell of alot better. Title: Re: LTFT issues on narrowband TT225's Post by: vwaudiguy on July 08, 2013, 08:15:05 PM Well I can tell you that 034 motorsports and unitronic get around all this by converting to wideband front 02, Its pretty easy and a hell of alot better. Moar details? :) Title: Re: LTFT issues on narrowband TT225's Post by: Carsinc on July 08, 2013, 09:21:52 PM This is about a mafless file but the diy is the same and the tuning is up to you,
http://forums.vwvortex.com/showthread.php?4620923-DIY-How-To-Wideband-02-harness-conversion-for-support-of-Pressure-Based-Tunes (http://forums.vwvortex.com/showthread.php?4620923-DIY-How-To-Wideband-02-harness-conversion-for-support-of-Pressure-Based-Tunes) Title: Re: LTFT issues on narrowband TT225's Post by: Matt@GTS on July 08, 2013, 09:23:41 PM Well I can tell you that 034 motorsports and unitronic get around all this by converting to wideband front 02, I know this.Its pretty easy and a hell of alot better. I would just like to fix the LTFT's instead. Title: Re: LTFT issues on narrowband TT225's Post by: Carsinc on July 08, 2013, 10:03:25 PM I think the rear 02sensor could be what is causeing the ltft problems your talking bout.
I started a thread awhile back discussing rear 02s and ltft. Title: Re: LTFT issues on narrowband TT225's Post by: vwaudiguy on July 08, 2013, 10:03:45 PM This is about a mafless file but the diy is the same and the tuning is up to you, http://forums.vwvortex.com/showthread.php?4620923-DIY-How-To-Wideband-02-harness-conversion-for-support-of-Pressure-Based-Tunes (http://forums.vwvortex.com/showthread.php?4620923-DIY-How-To-Wideband-02-harness-conversion-for-support-of-Pressure-Based-Tunes) Thanks Title: Re: LTFT issues on narrowband TT225's Post by: Matt@GTS on July 09, 2013, 12:41:42 PM I think the rear 02sensor could be what is causeing the ltft problems your talking bout. Not rear O2.I started a thread awhile back discussing rear 02s and ltft. I confirmed that binaries with working LTFT's have 08 for NOLRA while the ones that do not have working LTFT's have 04 for NOLRA. Title: Re: LTFT issues on narrowband TT225's Post by: Carsinc on July 09, 2013, 01:02:07 PM I have a feeling you understand this better than I do, I'm just trying to bring up a lil known problem with crazy stuff rear 02s can do.
Title: Re: LTFT issues on narrowband TT225's Post by: player on July 11, 2013, 11:13:15 AM i converted to wideband and delete rear 02 but ...still ltft is 9%...and the engine runs like crap...i just have to unplug the lambda for it to run allmost normal..
Title: Re: LTFT issues on narrowband TT225's Post by: vagenwerk on July 11, 2013, 12:57:03 PM check for leaks, check maf for proper numers, check lambda, and also check for any stored codes
Title: Re: LTFT issues on narrowband TT225's Post by: Matt@GTS on July 13, 2013, 08:23:01 PM i converted to wideband and delete rear 02 but ...still ltft is 9%...and the engine runs like crap...i just have to unplug the lambda for it to run allmost normal.. Hardware issueTitle: Re: LTFT issues on narrowband TT225's Post by: chiptuner123 on October 20, 2019, 10:45:27 AM do you know if the ecu read the LAMBDA sensor at full load?
I run AFR 14.00 2000rpm to 6800rpm.I do nkt know if problem is the sensor or other? Title: Re: LTFT issues on narrowband TT225's Post by: nyet on October 20, 2019, 11:23:03 AM do you know if the ecu read the LAMBDA sensor at full load? I run AFR 14.00 2000rpm to 6800rpm.I do nkt know if problem is the sensor or other? Good thing you posted logs |