Turbine for a combustion engine

The turbine (1) has a turbine rotor (6) that is mounted in turbine housing (2). The turbine rotor is provided to separate the housing interior space (5) into high-pressure region (7) connected to inlet opening (3) and low-pressure region (8) connected to outlet opening (4). A lambda probe (10) is provided to determine portion of gas component of exhaust gas in turbine housing. The feed and discharge lines (11,13) are respectively provided with feed and discharge openings (12,14) for feeding and discharging exhaust gas in and out of measurement space (9).