NefMoto > Technical > Tuning > fuel trim help
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Author Topic: fuel trim help  (Read 3956 times)
hillbily1988
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« on: May 17, 2020, 07:28:01 AM »
if my ltft is at 3.9 how much should i add/remove from krkte?
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nyet
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« Reply #1 on: May 17, 2020, 08:28:23 AM »
add 3.9 if part throttle trim

if idle, alter TVUB
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hillbily1988
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« Reply #2 on: May 17, 2020, 08:49:42 AM »
krkte is currently 0.06205 i cant just add 3.9 im sure it is a small change
the 3.9 ltft is partial after a 30min run
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hillbily1988
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« Reply #3 on: May 17, 2020, 09:16:41 AM »
all i can find on this topic is to fine tune it but to what degree?
do i add 0.00001 or 0.01000?
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carsey
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« Reply #4 on: May 17, 2020, 10:03:33 AM »
0.05961

Just add 3.9% onto your krkte.
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hillbily1988
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« Reply #5 on: May 17, 2020, 10:09:55 AM »
aaahhhh the % makes it make sense but surely adding 3.9% to 0.06205 should be 0.06446

or am i still missing something?
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nyet
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« Reply #6 on: May 17, 2020, 10:57:39 AM »
*1.039 -> 0.06447 is what i get too
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Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
rogerius
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« Reply #7 on: May 17, 2020, 11:25:03 AM »
Quote from: nyet on May 17, 2020, 10:57:39 AM
*1.039 -> 0.06447 is what i get too
and what is the [u.m] for krkte?
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hillbily1988
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« Reply #8 on: May 17, 2020, 11:38:45 AM »
just got back from another run after change to 0.06447
still got 2.3 so will calculate and keep going
thanks for the help.
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nyet
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« Reply #9 on: May 17, 2020, 06:37:11 PM »
Quote from: hillbily1988 on May 17, 2020, 11:38:45 AM
just got back from another run after change to 0.06447
still got 2.3 so will calculate and keep going
thanks for the help.

Thats not a good sign actually. It should be pretty responsive
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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