flooding VP

[beau3.8]

Hi all
I have a problem with a VP 3.8 Wagon The car is stock standard and is a great family car
When starting the car cold all is well, when starting the car when normal operating temp the car over fuels (floods and is hard to start)
So far I have changed the injectors, fuel regulator on the rail, oxygen sensor and cleaned the thottle body but no luck
The car still gets approx the same Km out of a tank as it has in the past idles well after clearing the overfuel (30 seconds) code 12 comes up when checked
and I am now at a loss to what the fault may be any help would be greatly recieved

[V85000i]

does it only do it in hot weather or any time of the year, also where do you park it, what kind of surface.