Trying to help a friend figure out what his problem is. He has a 2006 GTi with the 130hp motor. If you accelerate full throttle for longer than a few seconds or try to run above 30-35 mph the engine derates and throws an exhaust temperature code. Once you let it cool off or pull the key out it's good to go again. We removed the middle clamp on the j-pipe, cleaned the exhaust sensor. Everything looks normal in there. Not sure what the problem is now. I'm not very familiar with these skis so maybe somebody can shed a little light for me. Thanks