i have an 06 F150 xlt 5.4 flex .has anyone heard of fords termination resistor i have a heavy misfire under load until i get up high in the revs . and its only on #1 cyl plus i have a p1000 that i cant reset to save my life and also a U1900 network bus failure code and mitchell on demand says it could be the termination resistor can i replace it repare it reset it or is it going to be anew pcm or something to do with the CAN system?