Went for a drive on the highway today and discovered a couple of things.
While on the highway, the stuttering/misfiring came back with a vengeance.
Here are the symptoms:
Light peddle pressure, enough to keep pace with traffic produced the stuttering
Medium peddle pressure, produced stuttering through the rev range.
WOT produced less stuttering but the car seemed down 20 hp or so.
Now the strange thing is, if I set the cruise control it all stops....
So, Im thinking its now the TPS or Pedal position sensor.
Does anyone know if either of these cause a code to be thrown?