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SPN 520578 FMI 31: Information: Torque limitation active The current value for the 'Urea content' component is too low.
Mitchell hasn't provided me with much information to work with.
they took it to the Mitsubishi dealer, but they couldn't fix it. I'm leaning towards the idea that the Def quality sensor in the tank might be faulty, but I'd have to purchase an entirely new tank to replace it.
As a heavy-duty diesel mechanic based in Oregon, I work on a variety of vehicles, including F-150s, tractor-trailers, RVs, pumper trailers, wood chippers, and whatever else the owner brings in.