i am new to the site and have been told i may find the advice i need here. i have a 03 fiat seicento 1.1 active and it judders (stutters) when it gets to a quarter of a tank. it feels like there is no petrol in the car and has once completly cut out while driving home. i no the fuel gauge is working and there is fuel in the car as that has all been checked. the petrol pump has been taken out to make sure the filter is still in place which it was. please help lol