Hello, I have the following problems with my Lupo GTi : 1. lights up the OBD lamp (motor symbol), when reading out the error the tester writes “error mixture preparation”. I changed spark plugs and air filter (totally oiled) and cleaned the crankshaft housing ventilation. But after about 1 week it lights up again…. 2. the ABS/ESD lamp also lights up, in the error memory is “lenk angle sensor defective”. Now I asked at VW, which say the steering angle sensor is in the Cross-acceleration sensor integrated with?????? Is that true and I have to encode or program it after I replace it??? Would you be very grateful for your help…