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Old 01-18-2005, 08:47 PM   #1
jlee8196
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Member#: 22211
Join Date: Jul 2002
Default Hydra autotune under 2Krpm & LTT

After couple weeks of tuning, my fuel map is very on target, I had to lean out
a conservetive base map. but since autotune tune above 2k rpm. I have a cut off under 2K with a sizable bump. I tried leaning it out a little, but don't really know how much. Is there a way using the auto feature other then logging and manually tune it.
Also what Long term fuel trim use for. Why it's not used under wideband sensor?
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Old 01-19-2005, 01:41 AM   #2
jlee8196
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Member#: 22211
Join Date: Jul 2002
Default

I just read the element tuning guide, I think I'd understand how to tune the rest.
But.
How long does it take to learn LLFT Under closed loop. Do I need to upload and then download to save the changes made?.
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Old 01-19-2005, 12:05 PM   #3
Element Tuning
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Member#: 54918
Join Date: Feb 2004
Chapter/Region: MAIC
Location: Gaithersburg, MD
Vehicle:
673 WHP Element
Tuning Pro Comp Engine

Default

While using "closed loop and Long Term Learning" 14.7 AFR, short and long term fuel trims are made during the drive cycle only. Once you turn off the car those changes are lost (they are temporary). There is no need to upload/download while using "closed loop" only if you are using "autotune."

Thanks,
Phil
www.elementtuning.com
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