Yup the car was chipped and remapped and r/roaded in March of this year, but she ran fine. The previous owner was a lady and the car has full vwsh and 60k. The mechanic has also commented on the engine saying "It's internally the best/cleanest one he has seen in a long time". Neither himself or the other two independant inspectors that have both viewed the car for over a hour can conclude what the problem was that caused this? All the valves seem fine and the injectors seem fine too.I never drive her hard until well over 20mins after starting, i do drive her hard on occasions but nothing exces