i got my '04 srt4 a few months ago, i messed around with my wastegate actuator and had a boost controler for a month, but car is all stock now, lately the rpm jumps around while im rolling in neutral, and car seems to hesitate at partial throttle at times. anyone knows what it could b??

 

this has happened to a few other folks go back a few pages in the forum and you see a few with all the info you need.