Audi A4 power loss and stalling?

[muff666]

Hi
My A4 1.9 TDI 51 plate is behaving rather strangely. When my wife was driving it, It lost power and started to chug and even stalled due to the problem in 1st gear( not cause she's a bad driver either)!
I hit a small pheasant in the car a few days ago and it did make a very very small dink in the bonnet, size of a 5p half a mm deep hardly noticable but there is no damage underneath and theres no water leaking and the level remains the same although the fan always seems to be on now when we park the car and remains on until the ignition is turned off! If anyone has a clue please let me know. Thanks Guys

[BoraBora]

does the car idle ok ?, is there any smoke from the rear ?

[muff666]

Hi
Thanks for the reply, the car does smoke lots when you rev the engine and its black smoke. The car does rev now and again when idling but not high and it seems to be using more fuel aswell!!!

[BoraBora]

just throwing out guesses here, but possibly your EGR valve or Idle Air valve ?

[thesyn]

MAF ??