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Good evening all,
I'm working on a truck with the above mentioned code and I've followed all of the tests laid out by ShopKey. It's a 2015 F250 Lariat Super Duty 4x4 with the 6.7 Diesel and 6spd Auto. I can't clear the code with a code scanner, and I've tried going on a drive with it- however the engine is commanded at idle. I was hoping someone has some help. The only other thread I saw ended with the owner taking it to the dealer and it hasn't been updated.
p204e - Reductant pressure sensor circuit intermittent/erratic
I've checked the wires going from the pressure sensor going back to the PCM, all are good. I can pull up the Reductant Line Pressure and Reductant Injector Duty Cycle PIDs and watch them. I don't see the line pressure PID act eratic, but I also can't find what I should be looking for on ShopKey. Is there a learn procedure that needs to be followed?
Any help is appreciated, thank you
X
Also would like to add that I've tried the KE EO test and it passes with no codes present. I found a procedure on shopkey, followed it through, but still no luck. The DTC reads "Not Current" when I look at it in memory.
Thought I would update this with saying the DEF pump that was installed must have been defective. I replaced it again, redid all the road tests and a forced regen, it took a while to get everything right where the computer wanted it, but eventually it did clear.
Recently just checking out the forum again, no it did not take 2 years to solve the issue, I just forgot to update it after redoing the DEF pump and the headache that followed.
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