hi i'm pretty new here i just bought my 99 gtp about a month ago and am having some issues i could use some advice. the other day i was driving and my boost gauge just stopped working but the car drove fine so i didn't think much of it, until 15 min later in the drive it started sputtering when i hit the gas like a bad tps. so i get home unplug it and it drives fine i replace the tps all is well for a day and it starts again i scan it and get a iac code so i replace it and it runs great for a day. and now again same thing only now it idles at 2k won't move still acting like a bad tps but i get maf codes and tps codes. i've replaced all 3 sensors on the throttle body and plugs and wires and still nothing. could the pcm have gone out??? i'm new to these cars so i'm not sure if that is a common problem but i can't see what else it could be any help would be GREAT!!!!
