My 98 GTP is doing this and it also hiccups time to time. I went to autozone they said MAF. I cleaned the MAF and it is completely fine. I took my car to NTB they said MAP sensor so I repleaced the map sensor put in all new plugs and wires and still have the same issue. My car runs fine the first couple of minutes until the engine wars up and then it seems to run like crap. I checked and all of the recall stuff was taked car of back in 09 when I had them originally addressed. I also had the coils tested and stuff before the tune up. I also installed anew PCV valve. Any suggestions on what I am dealing with and how to fix them? Some mechanic said I probably need to get my injectors cleaned out but that makes no sense if the car runs fine when its cold and crappy when hot
