Hi folks, have a problem with my Stilo 2.4 Abarth 2004 which i've had for 3 year.i keep getting a engine warning light come up telling me that there is a ASR failure and a ESP failure. It first occured just after i had my tracking sorted out a month ago but only came up as a failure twice, then it didn't come up again til yesterday when i'd done about 60 miles on the motorway also saying Sensor failure now it keeps coming up. Any ideas what it is? do i need to go to the local fiat garage and give them a bucket load of cash or is it something i can sort myself??