my LTFT and KR
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well I reset my fuel trims a few days ago and took this log yesterday. I cut and pasted straight from the scanner and I'm still getting the same pockets of rich. I AM in SD tuning now. Granted rich is better than lean, but I can't seem to get it right
LTFT(avg)
LTFT(avg)
![](http://www.cbu.edu/~mdeason/hptuner/LTFT4SCREEN.bmp)
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Well you need to take alot of those values that are lower than -5 and move then closer to the -4 to 0 range if possible.
If you want, it might be easier to just disable LTFT and do a quick 20min log of STFTs and get the whole VE in the 0 to -4 range. Then adjust timing and then go back and make sure the STFTs are still in the 0 to -4 range, then once that done, calibrate the MAF to keep it in the 0 to -4 range and then enable LTFT and you are done.
Dixit
If you want, it might be easier to just disable LTFT and do a quick 20min log of STFTs and get the whole VE in the 0 to -4 range. Then adjust timing and then go back and make sure the STFTs are still in the 0 to -4 range, then once that done, calibrate the MAF to keep it in the 0 to -4 range and then enable LTFT and you are done.
Dixit
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Originally Posted by Dixit
Well you need to take alot of those values that are lower than -5 and move then closer to the -4 to 0 range if possible.
If you want, it might be easier to just disable LTFT and do a quick 20min log of STFTs and get the whole VE in the 0 to -4 range. Then adjust timing and then go back and make sure the STFTs are still in the 0 to -4 range, then once that done, calibrate the MAF to keep it in the 0 to -4 range and then enable LTFT and you are done.
Dixit
If you want, it might be easier to just disable LTFT and do a quick 20min log of STFTs and get the whole VE in the 0 to -4 range. Then adjust timing and then go back and make sure the STFTs are still in the 0 to -4 range, then once that done, calibrate the MAF to keep it in the 0 to -4 range and then enable LTFT and you are done.
Dixit
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![](http://www.cbu.edu/~mdeason/hptuner/STFT4SCREEN.bmp)
Here are my STFT(not sure if this is even close to normal). Yes those are the average values. do I just go in the primary VE table and adjust as if I was doing the LTFT? If so I may be pulling nearly all the fuel the car is getting. Here is a current graph of the Primary VE
![](http://www.cbu.edu/~mdeason/hptuner/3DGRAPH4SCREEN.bmp)
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Man those STFTs are off big time, you want that as close to 0 as possible. Is that STFTs after you disabled the LTFT?
Yea you just go in VE and subtrace or add that cell by the amount of percentage its off shown in the histogram.
Dixit
Yea you just go in VE and subtrace or add that cell by the amount of percentage its off shown in the histogram.
Dixit
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Originally Posted by Dixit
Man those STFTs are off big time, you want that as close to 0 as possible. Is that STFTs after you disabled the LTFT?
Yea you just go in VE and subtrace or add that cell by the amount of percentage its off shown in the histogram.
Dixit
Yea you just go in VE and subtrace or add that cell by the amount of percentage its off shown in the histogram.
Dixit
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ok I adjusted the table and did another log. SAME ******* **** ALL OVER THE PLACE!!!! I have done everything just like I've been told and this **** has not changed after 12 different tunes!!! WTF AM I DOING WRONG???? Could a bad 02 give me stupid readings?? Hell I don't think they are bad, but I have no other options at this point.
I'm going to put a bullet or 2 in the computer in a minute!
![MAD](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_mad.gif)
edit: I just read that I have to use the SECONDARY VE table. In all the documents I have read that has not been in there.
I'm going to put a bullet or 2 in the computer in a minute!
![MAD](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_mad.gif)
![MAD](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_mad.gif)
![MAD](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_mad.gif)
edit: I just read that I have to use the SECONDARY VE table. In all the documents I have read that has not been in there.
Last edited by KALEL; 08-11-2005 at 08:23 PM.