Apexi SAFC II Air Flow %

[got2b240]

I have the SOHC mafs on my SR. I have installed the Apexi SAFC II and I realized that when my car is not running that the airflow usage ratio comming from my MAFS is reading a constant 0.4% I dont understand this because the car is not drawing in any air. I tried to modify the IN and OUT on the sensor setup and If I bring it down to like 2 and 2 or 3 and 3 it will jump up to 0.6% constant when its not running.

Has anyone ever noticed this, or do I have a bad Mafs voltage? When I wired the SAFC I used solder and all to ensure proper connection.

[got2b240]

i found that if I set the sensor number to 19 in and 19 out that this now drops to 0.1 % when the car is sitting unstarted. This is wierd, but I noticed only prime numbers seem to help this issue.

[SpeedRacer1]

Honostly its nothing to worry about. I have an SR20 MAFS and the SAFC shows 0.4% airflow when the car is off.

[got2b240]

hmm intresting