Injector maybe?

[Kyle_truck_pull]

My uncle has a 02 duramax, and I know nothing about these trucks, he believes he is havin another injector problem. I didn't know I there were any helpful information that could help is pin point an injector without goin to the dealer
thanks

 

[ecc_33]

Find someone local with efi live or a tech II and do a injector balance rate test. That should tell you which one it is

 

[Kyle_truck_pull]

Thanks for the info, I'll see what I can find out.
I have a genisys but it's pretty limited on what it can do