HELLO ALL, COULD DO WITH SOME SUGGESTIONS AS IM A BIT STUCK, JUST CHANGED FROM A PETROL GALAXY TO A TDI ALHAMBRA, LOVELY CAR, GOOD CONDITION, ITS DONE 170K BUT FULL SERVICE HISTORY, HERE'S MY PROBLEM IT PULLS WELL UP TO 4TH GEAR BUT WHILST ON THE MOTORWAY TODAY I NOTICED A PROBLEM, AT ABOUT 30- 31K RPM AND AROUND 80 MPH IT SEEMS TO HIT A LAG AND DROP BACK DOWN TO 65ISH AND IT WONT GO MORE THAN 80, NOT SURE IF ITS TURBO RELATED IT DOES'NT DO IT ALL THE TIME BUT I WOULD LIKE TO FIGURE IT OUT, ALL SUGGESTIONS WELCOME