Normal LTFT??

[Spuds]

Originally Posted by Sel_brz17

MY Stft trim hovers arund -3%, which i think is fine.... myltft on the other hand hovers around -19% on idle and -15% while driving. I do believe its bc i got an injen intake on there. SHould i be worried? I really dont wanna take off injen intake but will do so if needed. What can happen if I continue to run my car at these readings? Thank you!

Are these logs or real time looking at it? There's a maf scaling thread on here so that's where to start. LTFT is stored in buckets and I think that thread explains it iirc.

If that's what the logged readings are actually averaging to, you should be fine to do nothing about it for normal driving, though your AFR in the upper rev range might be a bit off. Solution is to rescale the maf. The scale for that intake might be posted somewhere, or you can do it the long way. Or maybe the manufacturer has it available.

[Sel_brz17]

THANK you so much! Would i be fine running e85 on the current ltft as well?

[Spuds]

Originally Posted by Sel_brz17

THANK you so much! Would i be fine running e85 on the current ltft as well?

Well if you do, your ltft will change quite a bit at the least. Other than that . If it were my car, I'd run a tune. There's a post on here where that was discussed by folks with much more experience than me. I'd suggest finding that.