Sjd6795
Proven Member
- 614
- 121
- May 14, 2014
-
Wilsonville,
Oregon
So still tinkering with my tune to get AFR set perfect. I have seem to get idle to be near perfect it still shows a little rich after pulling up to a stop light around 12.5 then eventually comes back to around 14.
However when I let the car idle for 16+ minutes my fuel trims never changed, I had to drive the car and LTFT finally showed up and was around 3-5% if I remember correctly. After coming back to idle LTFT went to 12.5% and stayed there. During the drive I also did a pull and AFR was 10.8 I can adjust scaling easy enough to lower that to 10.5 if needed, but my mid or high fuel trims never changed the value just stayed at 0.
My cruising AFR is still rich but I believe I need to adjust fuel trim control points for maf smoothing?
I took a shitty video with my phone after coming back to the apartment and letting the car idle. My o2 sensor voltage is bouncing as it should, RPM are perfect, Battery voltage is perfect, MAF hz perfect, and LTFT is stuck at 12.5 and no other fuel trim are reading.
However when I let the car idle for 16+ minutes my fuel trims never changed, I had to drive the car and LTFT finally showed up and was around 3-5% if I remember correctly. After coming back to idle LTFT went to 12.5% and stayed there. During the drive I also did a pull and AFR was 10.8 I can adjust scaling easy enough to lower that to 10.5 if needed, but my mid or high fuel trims never changed the value just stayed at 0.
My cruising AFR is still rich but I believe I need to adjust fuel trim control points for maf smoothing?
I took a shitty video with my phone after coming back to the apartment and letting the car idle. My o2 sensor voltage is bouncing as it should, RPM are perfect, Battery voltage is perfect, MAF hz perfect, and LTFT is stuck at 12.5 and no other fuel trim are reading.
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