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loose of power
Posted to HD/Fleet Forum on 1/15/2014 1 Reply

Does any body know what this code mean spn 931 fmi 19 on a maxxforce dt. This truck has loss of power when check engine light turns on and some times wont start and this code is stored in inactive codes and spn 94 fmi 1 is stored to .

Alejandro from Puerto Rico

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