My 2013 F-250 has thrown an error the last 2 days after hard climbs while towing my 10K lb travel trailer. Truck towed fine on climbs to nearly 10,000’ elevation. It threw the error as I was idling after the 4 hour drive. After the first time, I had the code read and replaced the MAP sensor (this morning) and had the CEL cleared. Original sensor was all caked up with soot. It did almost the exact same thing today after a long climb to 9500’, and only when I left the truck idling for a short period after arriving at my destination similar to yesterday. This time though the new MAP sensor didn’t look all that bad. Any thoughts on what else might be causing the issue? The guy at O’Reilly’s suggested it’s pretty common in trucks that aren’t regularly driven hard at elevation, but that makes no sense to me.
Jester09
The code sets when the final air mass adaption stored value at idle is greater than 15% above or below the calibrated threshold. While a MAP sensor could cause this, anything in the air management system can be the cause. MAP and MAF sensors intake and exhaust system leaks or restrictions and the EGR system. A leaking EGR valve will affect MAF sensor readings. You might start by inspecting your air filter, intake hoses, CAC hoses for leaks.
I'm still seeing "some" black smoke out the pipe, but only under heavy acceleration. The injector cleaner may be helping after only about 3/4 of a tank. That's good, but not good enough. Your statement that "Visible black smoke from any truck with a DPF is an indication that the filter has failed" is obvious concern. Are you suggesting that the only option to replace the DPF, or are there alternatives? This began after using Platinum BlueDef vs. regular for the first time. Coincidence?
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