Hi All ive got a seat Leon 2013 mk3 1.6 tdi its lacking in alot of power and most days drives very rough, when the power comes back rarely when driving the car will do a wheel spin and then become responsive again and smooth , fast but this rarely comes back also ive noticed the revs have increased where as before I could do 80mph and it will be on 2000 revs now on 65mph it does 2000 revs and having to filling up more fuel now every week , also in idle after driving for a while it will stay on 1000 revs nothing has appeared on any diagnostic checks any ideas?
