I will share on how to use Caterpillar ET diagnostic to program injector for Caterpillar C7.Hope it help!
Caterpillar ET 2022A 2019C 2018A Electronic Technician Software Free Download
How to Create New Caterpillar Injector Trim Files
Connect CAT3 interface to DLC,and then run CAT ET diagnostic software and build connection
Select “Service” calibration function
Perform injector replacement programming,and click “Change”
Load the injectors matched trim files
Emissions could be affected if the wrong injector trim file is selected.Are you sure you want to program this injector?
Injector Trim successfully programmed.