96 accent missfire

I have a 96 accent that misfires on acceleration from a stop. Once to speed or if you floor it, it runs fine. It only seams to do it at low speeds and there are on codes.

Parts I have already changed:
Plugs
Plug wires
Fuel filter
Fuel pressure regulator
Coil

any ideas

After changing all of those things the only thing it can be is the Lamda sensor (oxygen sensor) Easy to replace yourself!

I had the same problem with my Nissan Primera

Good luck