I'm getting codes p2126 and p2164 and getting wrench light. Have cleaned throttle body and changed the tps but still have these codes. People have told me the accelerator pedal sensor could be acting up and have had the pedal to the floor with no response- that was fixed by re-starting engine.My truck is a 2004 non-heritage 4.6 v8 but I can't even find a part that that fits accelerator pedal sensor on any vendors website, does it even exist? Could it be the etc throttle body assembly? Where should I go from here.