Hi I have taken my Fiat 500 into a garage today as the engine light and ECU warning light have been showing the past week but the car has been driving fine. They have done a diagnostic check and found codes P1220 and C1221 which relate to the 'throttle position sensor' and 'intermittant throttle issue'. They said they need time to check in the bonnet so have rebooked the car back in for 2 days time. I just want to get a heads up if possible on what the problem COULD be and how costly it might be as I am a tight budget! I would be grateful for any help or suggestions to keep costs down so I can go in on Friday prepared and as a young girl on my own I am obviously worried about being ripped off for more than necessary!