Hi all so I brought myself a Mk6 fiesta 1.4 petrol and it was driving fine and now when I try and start it, it turns over but cuts out won't start unless I press my accelerator then it starts and i can turn it off and re start it and it'll fire up first time, until I come back to it after a day and it'll have issues again I haven't got a clue where to start first annoying as I brought the car and got told there was no issues and they're denying it happening as always. But anyone who know what's causing this issue or has the same problem and fixed it please please let me know any advice is appreciated it's on 81k miles