https://docs.emtronaustralia.com.au/engine-management/config/air-mass/air-mass-model-setup/index.htmlAir Mass Model The Air Mass Model defines how the ECU calculates the mass of air entering the engine. The calculated air mass is then used to determine the required fuel mass to achieve the commanded Lambda Target, before being converted into an injector pulse width using the configured injector characteristics. Different engine combinations may benefit from different air mass calculation strategies. Emtron provides several Air Mass Models to suit a wide range of applications.Hugoen-us