Misfire At 3000Rpm?

[firstcar_205gti 2 1 Cars]

hi all, i dont really know how to explain this but here we go. while driving its fine up to pretty exactly 3000rpm and then as soon as you get past say 3100rmp its fine but in between its almost as if the car gives up. any sugestions ?

[dcc 855]

So many things... The search function should throw up 40-50 helpful topics.