we have installed a set of m660 tials to a 991.2 sdi21.2 along with the larger inlet pipes and bmc filter + catalyst delete pipes.

the car now will not idle lower than 1200-1400rpm and displays p0507 dtc for idle speed control error. according to the tech, they have confirmed there are no hardware errors with the installation.

has anyone else experienced this? i still believe there is a possible hardware error of some sort. otherwise the car drives great. fuel trims at idle are normal, does not "appear" to be an air leak of some sort.

i have disabled catalyst heating and modified idle torque reserve maps in both directions and nothing seems to help. anyone have any insight? is this a software issue that needs correcting?

edit: SOLVED.