Put some heat wrap on the intake tube over the turbo for the hell of it.
APR K04 Powered, Custom 3" Exhaust, Airlift Performance bags with V2, Carbonio Intake, BSH Throttle Pipe, DXD Stage II Clutch, HPA Solid Trans Mount, Diesel Geek Shifter, shaved front bumper, golf r side skirts
Had some mythological TSB performed on the Throttle body harness. Then about two months later the problem returned and they replaced the Throttle Body. Then a few months later it returned again and they kept it for three days and couldn't replicate it.
That last time I had to clear the faults to be able to drive it but I provided a VCDS log of the faults. They still said they couldn't verify anything unless it was actively logged in the car.
So I'll just keep clearing the faults and keep VCDS handy in the car.