Quality control tests of production engines are conducted on the dyno in order to define the actual engine parameters and compare them with those declared by the manufacturer (e.g. COP – Conformity of Production). During measurements on the engine dyno, parameters such as torque and power at full load, fuel consumption as well as exhaust opacity during free acceleration are measured. These tests gives the ability to identify any anomalies occurring during the engine production process through verification of engine parameters.