Dct's (trouble with trouble code definition)

I recently pulled a DTC code of P-0006, Fuel Shutoff Valve “A” Control Circuit Low; and have yet to find a single possible definition, much less possible source of this issue, can anyone give me a little schooling on this item. I also recieved one as p-27fe (2000 F-150, w/5.4 liter 4 wheel drive.) completely clueless on the second one.



I believe that P27FE is a transmission related code, but I don’t have any detail on it.