Blaque_Out said:Correct. The AFC only changes the fueling by a small amount, if at all. Its best to have the ECU reprogrammed via Maptun, SQR..etc.
To reprogram your ECU yourself you'd need to have an EPROM Flasher which not only is expensive but difficult to obtain especially for the type of EPROM chip in our ECUs.
Even if you were able to locate a flasher you have to know what your doing. Reprogramming an ECU means altering stiochiometric values at different RPM bands and boost levels. These values are shown on a 3 dimensional graph that covers all the fueling and boost at each RPM.
There are systems that other vehicles use for Engine Management and programming however i don't know of any for Saabs.