I've had some issues with the revs of my car for a while now. After starting from cold, the idle revs would be about 1100rpm and then settle down to 900rpm after a few mins, then down to 700-800rpm when warmed up. This seemed a bit high.
The issue was that when it was cold and you pressed and released the accelerator pedal, the revs dipped really low, sometimes almost stalling. So I took the car to a local Ford dealership and they said they ran diagnostics and reset the idle parameters etc on the car's computer. So nothing manual.
Now the car still idles at the rpms above, but the dipping revs issue when pressing the accelerator has gone. However another intermittent issue has arisen whereby when I'm driving along and then slow down to a standstill, braking with the clutch disengaged, the revs go up to about 2500 - 3000rpm! And then once stationary, go down again.
My question is, does this sound like an idle control valve problem? I don't know if my car has one?