Hi there, just got my 100 Quattro back on the road for the first time since 2008. I've been pootling around locally to bed everything in as the suspension has been fully rebuilt. Engine wise it has had all new belts, fluids, plugs, leads, cap, rotor. Performance wise though it is as flat as a pancake

It feels as if it has no torque and requires a bootful to even get it off the line. I know it's a heavy old lump but if i put my foot down in 3rd, i could get out and walk faster. Where do i start with this? Can i read codes off this engine? I see it has the two ports under the dash. It does idle rock solid though and doesn't smoke or cough. It's just goddamn slow!