Hi there, i wonder if anyone can help me. My lupo will not go over 3000rpm & jumps like a kangaroo, i have already changed lambda sensor on the manifold, camshaft sensor & crankshaft sensor, but on the code reader its now coming up P0321, can anyone tell me what this means & a possible cure for it. Oh by the way, it sometimes cuts out when u pull up. If someone can help i would be truly grateful. THANX.