I expect engine load would play a big part as well. Cheers, -Neil On 11/5/2015 3:14 PM, 99guspuppet wrote: > I mentioned that I opened up my AFM. > I expected the wiper on the AFM potentiometer to > track the engine RPM as I assumed RPM and airflow were > linked proportionally. > Instead I saw the wiper move up with increasing RPM, > then drop back. Since the RPM was hard to control > ( the reason why I am looking at engine parts ) I was unable > to make a reliable observation of exactly what happened. > Any comments ? > > Gus in Denver --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .