Launch control not working, related to errors

[lynchy73]

I have a weird issue. Launch control doesn’t work for me on my I4, no CEL and car is otherwise running fine. I check error messages using an OBD reader, no error messages are reported, but I clear errors anyway. After clearing errors, launch control is working again. It’s not like I need LC every drive, but it’s nice when stuff works.

Any ideas/suggestions on what’s going on and how to fix it permanently? For info, I have a TI exhaust and a sports cat from Aerie.