I am going around in circles with this thing! I've started over with a stock j4j1 base tune with my egr&smog disabled as well as checksum base at 0. When I datalog to try to set the base idle for the throttle body airflow calculation I get very low rpm values on calcon than compared to my stock and autometer tach. I understand that there is going to be some resistance and minimal loss but I feel that 100-200 rpm is alot. Changing the idle in gear and neutral scalars does nothing as far as idle rpm changes and tb airflow calculations I have made seem to be useless as well. The damn car runs perfectly on the stock settings and idles pretty much rock solid at 800-850rpm. I am using the correct formula for tb airflow maf kg/hr x 2.205/60 and when I divide the average rpm datalogged by the tb air flow I will always get lower than the stock 676 or whatever it is value; like I usually get around 600-625rpm for idle in gear and neutral. When I do it this way it will not idle; surges bad and stalls when coming to a stop. I am also running the stock j4j1 maf curve as well. I feel like I am just setting this thing manually 100%. I was also looking for that spreadsheet to do the 10-30point conversion for the maf transfer, but the link does not work. Does anyone have one they can send me? Thanks, Justin