Evening. I have a strange problem with a NG-motor in a 95 B4 Avant. Today cold started at minus degrees, ran well. Warm driving, all load conditions driven without problems. Set off, about half an hour waited, started and after 50 meters the engine was like closed. No gas on, jerked, stuttered.When I then gave full gas, one noticed how the full load switch did its duty and the engine ran round again and accelerated quite normally. As soon as you gas we Is the pressure regulator defective, or does it have other causes? New parts of the last few weeks: – reverberator – timing belts – Ke rzen – cable – cap, finger. Ignition thus almost excludes itself. For your answers already many thanks in advance.