[94v6kid09]

hi myname is james and i was driving home in my 94 v6mustang 3.8 and i went in the store and came out and when i started the car i realized it was running weird it was really rough and got worse at lower rpms when slowing down. I have since took it to advance and they told me my cam shaft positioning sensor was bad as well as a cylinder 3 misfire. i have since replaced the cam shaft positioning sensor, plug wires, coil pack, plugs, and i still have the problem does any one kno what could possibly be wrong i have been told it coul be a faulty or burnt injector driver as well as an egr valve.... but wouldnt that throw another code... and just a little history onthe car its a 3.8 manual and doesnt haveany thing to crazy done to it my dad and i restoredthe car and put an engine in it that had 31,000 miles on it the engine is still a 94 modelit currrently has 59,xxx miles on it

Any advice or know how would be great thanks for reading
andmore thanks for advice