I have a 91, n/a. I also have an s-afc2 but I do not know anything about how to work it. (incite would be greatly aprecciated)I have looked at the thread on the FAQ. My idle bobs up an down from 400-800rpm everytime I start the car. And stays that way the whole time no change but once u accelerate it is fine. But after downshifting to a stop in first gear it sometimes dies. Has anyone else had this problem? If so please tell me ur observations

 

under setting go to LO throttle adj. and try raising and lowering your 1K RPM setting and see if it idles better, too much work for me to type out how to work the SAFC i suggest just reading your owner's manual and if you don't have one you can download it in .pdf format from apexi.


it's not safe running your car untuned so get to know your SAFC sooner than later.