missfire or power

  1. illusion

    Missfire/Power loss @ 4500-5500 revs

    Hello all. I have a 2000 plate Cupra which has a problem around the 4500-5500 revs mark. When you reach about 4500rpm it kinda feels like a misfire and you get a definite loss of power but seems to clear after 5500rpm It only seems to happen in 3rd - 6th. I has been fully serviced from...