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Re: cummins isl9 fault 1894 communication ecm to turbo act
Posted to HD/Fleet Forum on 3/31/2021

Do I understand correctly that the new vgt actuator made no change and the fault 1894 still occurs? Any other faults?

I usually use a load pro to test the integrity of the 12v+ and 12v- to the vgt. And I like to scope the datalink pattern to verify.

Joel Login to read more.