oibren85

Hi Guys got a bit of a major problem, when i was pushing the legs of my car on my private test track i got up to 135mph the car went into limp mode and the scan gauge threw up the fault code 1299 which works out to a CHT (cylinder head temp). Haven't managed to re test to see if it does the same thing again but could this be a faulty sensor or do i need to change oil and water. Going to the ring in a month and would be expecting to pop up to this speed so really want to get it sorted.

All advice is greatly received!