Following up.
Got the code P04FC “Manufacturer Control”, which the tool refused to clear. The last time it happened, it was when ambient temps were below 40. It started warming up a bit the other day, and sure enough, it went away yesterday.
There’s a thread about folks getting non-iDrive CELs with Eventuri CF turbo inlets installed, which I have (not the intakes though), but last time was before I had these installed, so not sure they factor in.
