Since last night at about 12:40 am I have been having issues with starting my car and idling. It will turn over but it sounds as if it is struggling to get going until I hit the accelerator a bit. The problem continues at stop lights and in between shifts at low rpm. I tried using my sct tuner and it seemed to fix it for a short drive but I'm afraid that it was just a lucky run since the problem will go away occasionally on its own. I don't want to go to the garage without having an idea in mind as to what it might be so I can avoid being ripped off. Any ideas as to what it might be?