Stft adaptation values

[Jeffs54]

Hi everyone,

First post here, i have learned a lot reading you guys.
I have been reading the adaptations with the ecuworxs tool and stft adaptation values are both 0, car runs good and no error code's. Any ideas?

[BMWfanz]

All is perfect

[Shonky]

STFT in this tool are additive in ms ie +0.01 is adding 0.01ms extra (apparently although Im3not completely convinced about this one)
LTFT are multiplicative so 1.01 is adding 1%
Yes this is confusing compared to what other tools report

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/101300-obd-fuel-trim-vs-ecuworx-dme-utility-ltft

You want 0.00 STFT and 1.00 for LTFT to be perfect but you will never get it perfect - that's the point of these adaptations.

[Jeffs54]

Thanks for your responses, my “worries” are that should be some value of adaptation. Although I like to think that are perfect.

[sapote]

All is perfect

I don't believe in zero value for STFT or LTFT, in ms or percentage, in a normal running engine.
OP, I wonder what value is reported when using OBDFusion app.

[Shonky]

I don't believe in zero value for STFT or LTFT, in ms or percentage, in a normal running engine.
OP, I wonder what value is reported when using OBDFusion app.

I would question the 0.00 STFT reading too. I have used the tool and it did work for me but yes check with pretty much any other OBD tool and see what it reports.