METHOD FOR DIAGNOSING A PLURALITY OF LAMBDA SENSORS

A method for diagnosing a plurality of lambda sensors which are arranged upstream of an exhaust gas catalytic converter in a plurality of exhaust gas banks of a multi-flow exhaust gas system of an internal combustion engine. An opposite lambda offset of the lambda sensors is identified () when a difference (ΔT) between a measured exhaust gas temperature (T) and a modeled exhaust gas temperature (T) downstream of the exhaust gas catalytic converter overshoots a threshold value (S).