Process and apparatus for diagnosis of sensors of an air supply of an internal combustion engine

There are proposed an internal combustion engine, a method and apparatus for diagnosis of sensors of an air supply (3), by observing a signal from the ambient pressure sensor (11) is activated a presumption of malfunction of the ambient pressure sensor (11). If on the presumption of malfunction of at least one other station (12, 13, 14) of the air feed (3) of the internal combustion engine determines a comparison value for a measurement signal of the atmospheric pressure sensor (11). For a given deviation between the measured value and reference value, it is concluded that a fault of the ambient pressure sensor.