My car started acting up a month ago with burps, hiccups, and misfires. It would only occur upon full throttle acceration. After the car would clear out everything was fine. Last night the problem got worse. I went ahead and pulled the plugs and everything look fine. I checked the gap and again, everything was fine. I then replace the plugs just to see if there would be any change. It got better for a brief moment, then worse. I then put back in the stock plugs. Next I will swap out the coils to see if this helps.

Any thoughts, suggestions, experiences would be greatly appreciated.

 

Sounds ignition related, re-check your plugs, wires, and coils.

 

my car did the same thing, now it wont start. I just posted a thread about it.