Hi, i've had my 57 reg 307 for about 3 weeks and i got the anti pollution fault come up. filled car up with decent fuel and the light has gone out and the light has been out for over a week now. Only thing is i keep on getting an intermitent problem with acceleration. i.e. when driving down motorway at 70mph it feels like it wants to hold back for a couple of seconds like its been restricted and then it will cruise along again. Get the same problem in 2nd and 3rd gears when you try and pick up it will hold back for about 2 seconds and then will suddenly shoot off. i'm guessing it probably an air flow meter problem or something, is there anything i can check or clean?