Hi it Newbie here.
I have an Mk4 astravan which I got off my dad, (and my brother before that).
Over time since when my brother had it the engine has become way underpowered, noisy and the turbo seems to be lagging quite abit, my throttle pedal is constantly welded to the floor whilst driving. Both my bro and me dad assure me that this isn't normal compared to when they had the van, and both rekkon its the turbo not cutting in early enough (as it cuts in at approx 3.5k-4k revs) but I have no ideas .
Can anyone shed any light on this???