i posted this a while back and am still @ a stand still I have a 2006 GP GT, 3.8 SC. My car will not accelerate properly once i hit 30 MPH. Hell. it wont accelerate @ all unless i barely...and i mean barely press the gas pedal. I have no check engine light on. I also took of O2 sensor near the cat and the CAT is not the issue here. Someone please help b/c i am @ my wits end and don't wan't to go pay $80-$100 for a diagnostic.