Hello people, so it’s about a shuma2 bj01 with a 1.6l 101hp. Problem motor control light is eternal. at the first reading were the errors kat and lambdasonde. a lambda probe was changed and checked kat. error came relatively quickly again, this time error mixing bench1 and knock sensor. had the car at the gutachter which has disassembled half the car and he found nix also several times half the engine space disassembled and finds also nix. the car also consumes quite a lot of oil and the consumption with 11L is in my opinion also quite violent. have already made the previous owner of the plug out and he said that he had the problem once after refueling with the cschechen. after the info was again ANGELlich the fuel supply checked but also without solution?