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Re: 2003 cummins turbo overspeed
Posted to HD/Fleet Forum on 3/7/2016 5 Replies

The pid is called user fueling state. If their is a problem with the air/fuel side it will say air/fuel derate. If everything is normal at wot it will say all speed governor. Did you go on a test drive and graph the data as I requested? It is possible it could... Login to read more.

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