Hi. I have owned my F430 for a while now, and everything has been great. But a couple of days ago - the CEL came on. I haven't been driving the car in any unusual way - and it is still running like it should. I have tried to delete the CEL thru both an OBD reader and by switching the battery of. Both times has the CEL disappeared - but the info display shows "Slow Down" If I then restart - the CEL is back, but the car is running smooth and good. What can this be? I hope it is something minor - since I am going to drive 1500km on Thursday.