Join Date: Jun 2007
Location: Essex Connecticut
Ferrari Life Posts: 1,839
I did not respond as I am not specifically familiar with the Mondial. I did however just notice its the Mondal T. If I'm not mistaken, thats the same as a 348 right? If so, the slow down warnings are almost always a result of catalizer issue's. They are either to hot or being misrepresented by the cat ECU. The cat ECU is the normal problem. If its just the ECU, driving with the light on is not much of an issue. Best way to tell is to swap ECU's side to side and see if the Slow Down 1/4 becomes Slow down 5/8. If it does, thats the problem. ECU's are fairly expensive but Daniel at Ricambi can set you up. If you've noticed the issue when the car has been exposed to moisture, it may be a simple seal issue. Check the 348 section for ECU sealing. I put a photo essay in there for fixing it.
Previous owner of 348ts SS #64, Now Ferrariless