Cat C7 Engine Injector


In this instruction i will show you guide on how to use Caterpillar ET diagnostic to program injector for Caterpillar C7.


Connect CAT3 interface to DLC,and then run CAT ET 2019C diagnostic software and build connection

Select “Service” calibration function

Load the injectors matched trim files

Warning message!

Emissions could be affected if the wrong injector trim file is selected.Are you sure you want to program this injector?

Click “Yes”

Injector Trim successfully programmed.


If you want to learn more ,you can contact with us: or search on our store :