Hi!
We recently change the DPF filter to our forklift Hyster H16XMS-12 because this part was damage and need to be replace, but after the change, the instrument display show the Error E1921.
I search in the "Cummins Engine Fault Code Guide" and found the error: Aftertreatment Particulate Filter Differential Pressure - Data Valid But Above Normal Operating Range - Moderately Severe Level
What do you recommend us to do to fix this error? I appreciate any help you can give us.
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