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curtiscozmo

Help

Question

Hey guys if anyone can help i have a 2012 Mack cxu 613.

Can't seem to figure out code spn 4094 fmi 1.

Tried almost everything. 

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SPN 4094 signifies that Nox limits are exceeded due to insufficient diesel exhaust fluid or poor DEF quality. 

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Edited by GoldDog44
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