Is it a 6.7l or 5.9l. It might have to be with the trim codes on the injector if its a 6.7l. When you replace injectors on 6.7l the dealer has to get the trim code that is stamped on the solenoid of the new injector and enter that into the pcm via starscan, star mobile or witech. Trim codes are the most commen error when replacing injectors. some people just dont know about it.
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