Hello together, was today with my Green at the HU, he failed at the AU, the Lambda value is too high. From the protocol: Idle: 950 (max: 900) CO: 0.16 (max: 0.5) increased Idle: 2600 Lambda value: 1.042 (max: 1.03) CO: 0.0 (max: 0.3) He also has a hole in the exhaust just before the tailpipe. The examiner said that this is the cause. Can this be? Or false air and thus the increased Idle? Thank you for your help, Bernhard