Kangoo 2001, 1.4 petrol

[Hugh kangoo]

Hi, I’m knew to this forum , i have a 2001 Renault kangoo 1.4 petrol with 60,000 miles, recently it has started being very erratic when you start it first thing, sometimes it will rev to 2,000 rpm on startup , for the first 5 min it will miss and hesitate , you have to be quick on the clutch sometimes to stop it stalling, after it warms up in 5 min. Its perfectly fine then the next day its the same , Ive changed the plugs ,air filter to no avail, could someone tell me what to do next, thanks alot, hugh