hello people at my lupo is now the error P0401 I have a 1.0 liter 50ps bj 2000 lupo the agr has been exchanged at the beginning of october and since then nothing I drive with the car daily on the work about 13 km easier away ! before four or five weeks he had once so lightly twitched when you went from the gas and then again there we found that the one ignition cable was broken on the plug ! so the cable changed and then went on for several days then the motor light, was during the drive had been there already so 5 km and then they went on ! then the error was deleted just times jett was also quiet until today I was driving a piece and then she went on !!! what can you still do ?? or should I do anything there? had also read somewhere it can lie on the sprit since I always with the cheap tank gruss harry thanks already for helping