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Author Topic: LTFT issues on narrowband TT225's  (Read 9870 times)
Matt@GTS
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« 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?
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Carsinc
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« Reply #1 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.
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vwaudiguy
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« Reply #2 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? Smiley
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
Carsinc
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« Reply #3 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
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Matt@GTS
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« Reply #4 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,
Its pretty easy and a hell of alot better.
I know this.

I would just like to fix the LTFT's instead.
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Carsinc
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« Reply #5 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.
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vwaudiguy
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« Reply #6 on: July 08, 2013, 10:03:45 PM »


Thanks
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
Matt@GTS
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« Reply #7 on: July 09, 2013, 12:41:42 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.
Not rear O2.

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.
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Carsinc
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« Reply #8 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.
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player
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« Reply #9 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..
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vagenwerk
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« Reply #10 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
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Matt@GTS
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« Reply #11 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 issue
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chiptuner123
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« Reply #12 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?
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nyet
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« Reply #13 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
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