derate 3712, 3714, 2976

[Rawze]

(09-19-2025 )montrose818 Wrote:  code 2976 def dosing unit temperature - data erratic, intermittent, or incorrect

codes show a wiring issue with harness to Doser unit, or a bad doser unit.

Also, it shows a nox sensor is wearing out, or is an after-garbage branded uint.

and .. when is the last time you did a full EGR tune-up so that the engine itself was not producing too much Nox and soot?.
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