mitch86
15+ Year Contributor
- 64
- 2
- Oct 31, 2007
-
Lake in the Hills,
Illinois
I have been trying to dial in my fuel trims using the airflow sliders. My LTFT Lo has been at around 10% so I tried increasing and decreasing the 50hz slider to get it closer to zero per the DSMlink tuning guide. I finally got it to about 1.3% or so but I ended up having to increase the 50Hz slider to around 40% which I think is a bit high. Is it ok or is something else wrong? In addition, my idle AFR's are around 16.5 but but the second I start moving they go to where they should be. Any ideas? Is this something to worry about?
Thanks a lot, I am pretty new to DSMlink so any advice is appreciated!

(Mods in Profile)
Edit: after increasing the 50Hz slider to 40%, I cold started the car after it was sitting for 2 days and at idle it would fluctuate between 600 and 2000 RPM and it would almost die if I didnt give it a little gas. I moved it back down to around 25% but now my LTFT Lo is around 7-8%. I feel like I have to compromise between LTFT Lo and cold startup Idle quality. Any Ideas? Wisemen?
Thanks a lot, I am pretty new to DSMlink so any advice is appreciated!
(Mods in Profile)
Edit: after increasing the 50Hz slider to 40%, I cold started the car after it was sitting for 2 days and at idle it would fluctuate between 600 and 2000 RPM and it would almost die if I didnt give it a little gas. I moved it back down to around 25% but now my LTFT Lo is around 7-8%. I feel like I have to compromise between LTFT Lo and cold startup Idle quality. Any Ideas? Wisemen?