2004 f150 triton 5.4 was coding P0316, P0303,P0304, P0308 changed plugs out now its coding P0135,P0141,P0155,P0161,P0201,P0204,P0206,P0207,P0 303,P0316....

 

Until someone comes up with more definite info, suggest you check the plugs that go to the PCM, for water intrusion. Look for moisture or corrosion. Also check all the fuses . There could be a problem with the power to the O2 sensors causing the heater circuits for them all to show that the heater circuits are not working. Last, check all the ground connections you can see and find. When we get a lot of codes, as in this case, can be a ground problem.