Agreed, but I know my baselines today as I monitor 4 exhaust temperature sensors.
The one I watch closest is #1 in the downpipe.
I never turn the truck off until this under 400* F.
Side note; the next 2 sensors (#2and #3) get very hot during Regen., up to 1800*F.
I wonder if the MM3 can monitor exhaust temp sensor #1.
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