okay dont know how this has happened but the past 2 weeks everytime i start my car my speedo goes all the way to max as does my rpm's...its kinda like when you unhook your battery and then re hook it up it resetes itself....Im planning on getting a SCT tune very soon and was thinking if that could screw up my tune if it does it after the chip goes in??? any idea on a way i can find otu what the problem is?