hello I have recently put 1 step colder spark plugs on my car which is full bolt ons on stock turbo running jb4, i have noticed that it has been throwing a fuel mixture control 2 code popping up, as well as choppy acceleration around 2-2500 rpms. I have also noticed that under WOT at higher speeds it goes into limp mode followed by codes 30FE & 3100, im not sure if injectors would be an issue or some setting needing to be re adjusted on the tune itself . any help would be appreciated !!!!