Hyia im a newble to the site I've got a problem With my focus 1.8 zetec petrol it revs up ok at idle but when your driving it only revs up to 3000rpm and only do about 60 if u dip the clutch it revs up again it's had a new centre piece of the exhaust and backbox the cats ok just passed Mot could someone help thanks Paul sorry for the long winded post ha