It just seems I see this whenever I reset my trims on both banks for a while.
No log to post, just a question for those that know what it means.
It just seems I see this whenever I reset my trims on both banks for a while.
No log to post, just a question for those that know what it means.
What are you STFT showing? since LTFT is an average product of those, i would think that theyre pushing your LTFTs that direction from the time theres enough data to average to make a LTFT reading.
They're pinging around Rich/Lean 2-4 +-% It's just weird because my banks never match perfect and this -4.7 comes up a lot when resetting my trims especially, like it's hard coded. It's done it on every tune I've made for the past few years.
hmm, thats interesting, I had a similar issue before i got my MAF dialed in really well and was running Dyn Air. Are you running SD, MAF, or Dynamic Air? If your banks dont match then maybe theres a leaking injector or a plugged injector in there somewhere throwing it off on one bank then causing LTFT to creep up. What vehicle and setup are you running?
It's done it across 2 different injector manufactureres and sizes. I'm MAF and my LTFTs typically rune -+1-2% I just noticed it when I reset the trims while messing with the tune,
2014 camaro LSA with BTR3 cam
I've noticed some OS default to a slightly negative LTFT typcially just on one bank when the fuel trims have been reset.
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Do you happen to have any idea or guessed why that is? Id like to know if theres a certain reason why so i can keep an eye out for it.Originally Posted by Alvin
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