I have a CanOBD2 diagnostic tool that i used to try and diagnos my problem. the Code that came out was p0306 witch i looked up and it told me that there was a missfire on cylinder 6 and a EV code witch means EVAP Monitor.
I replaced the Coil and spark plug on that cylinder and im still getting the same result? engine surge.
can anyone help with suggestion.

 

Try switching the #6 injector with one from another cylinder to see if the code moves to another cylinder.