hi my mondeo verona has a problem, it starts no problem, but when i go to pull away it struggles to go, it does not stay at the correct revs. i have had the coil pack, plugs and leads change. it only happens when it is cold. when i lift the clutch up and press down on the accelarator it wants to stall, , so i give it more revs and then it seems ok, year 2000 verona lx, i have had a computer on it, but nothing showed up on it, thank you