Hello everyone. My name is Veronica & I just recently bought a 98 Gtp for dirt cheap.... $1000. Lucky if I do say so myself. Of course with a dirt cheap price there is bound to be some issues. Now keep in mind til I came along this car had not ran or even started for that fact for a year! She does 136xxx miles.... with that said her main problems are, power surges only in idle or normal driving, tsc won't kick off sometimes, obd2 scanner says egr valve is stuck open, & the alternator (or so it sounds) is whinning. Tranny sounds & feels good same goes with the motor. Supercharger pulls hard. She is white n has little to no body damage. A few dings like in the trunk & back quarter panel. Very happy with my purchase except with her problems which I'm yet trying to figure out the power surges.... any help with this problem would be greatly appreciated! This is my first GM car so a lil "stupid" when it comes to them.