Hello, I've bought a VW lupo 1.4 from 2000 2 weeks ago. But is has starting problems. When I try to start the cold engine, it will start but stops immediatly. I have to put gas on it to let it running. After the engine is warm it will run stationair but only on a very low RPM (around 500-600 rpm). I've already cleaned the throttle body and airfilter. But that didn't fix the problem. Maybe one of you can help me. Greetings martijn