I will share on how to use Caterpillar ET diagnostic to program injector for Caterpillar C7.Hope it help!
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.