doyshe

Hi, I took my Lotus Europa S out for it's weekly spin this morning. All was fine to begin with but then it felt like the throttle was sticking but I think the turbo over-run is continuing after releasing the accelerator pedal. I tested blipping throttle and that was returning fine at a standstill. Any suggestions as to what could be the cause and solution, or had a similar experience? Many thanks, Doyshe