'06 duratec 2.0 - dealer ecu upgrade ruins idle?

[Mad_Aussie]

Thanks guys... After topping it up with a fresh tank of 95 and taking it for a run down south, it seems to have re-learned its maps. Drives better now, although it now has better economy on the long 110kph runs, but slightly worse on a city cycle (I know the dash computer isn't the most accurate thing in the world!). Idles fine now (although maybe slightly too high).

But cheers for the replies guys!