https://docs.emtronaustralia.com.au/engine-management/tuning/fuel/cylinder-trim-tables/index.htmlCylinder trims are used to apply fine fuel corrections on a per-cylinder basis in order to improve combustion balance across all cylinders. Even in well-calibrated engines, small differences in airflow distribution, injector flow characteristics, and combustion efficiency can result in uneven cylinder operation. Typical reasons for using cylinder trims include: Balancing EGT distribution across all cylinders to reduce thermal stress Correcting minor airflow or volumetric efficiency differences between cylinders Compensating for injector flow variation or ageing effects Improving overall engine smoothness and combustion consistency Reducing the risk of individual cylinders running lean or rich under load Cylinder trims can be enabled per cylinder and provide a ± fuel mass percentage correction via a 3D table.Hugoen-us