Hey guys, exact problems happening with me. Been happening for about 2 and a half months now. exact same symptoms, wont rev with accelerator down over 2500rpm , idles very high about 2000rpm, randomly cuts out anywhere at any random time (very dangerous, happens to me on the motorway alot and corners).
What Helps it for me: I always warm the car up at least 3 minutes before I go anywhere now as If i drive straight away (even off boost) it still plays up (especially going up hills and when boost kicks in). I find that when it does happen (idle at 2000rpm) that if i pull over and wait 3-5 mins then the revs slowly fall.
Seen a mechanic and read alot on these forums but still cant confirm symptoms. originally I thought it had something to do with the fuel so cleaned all the lines, pump, reg new filter etc...no change. alot of people keep giving me the same answer though, coils , fuel, afm or plugs???? Anoyone out there know cause this its a real pain in the ass.