96 V6 camaro starting/idol trouble.
 

Heres the issue. When I start the car it will die if i dont flutter the gas and rev it up for about 30-45 seconds. It just started this a few days back. Then today as im driving, the car is warmed up, as I push the clutch in to change gears I noticed the rpms didnt seem to dip any. So I pushed the clutch in and the rmps went up to about 3000 and stayed there. It eventually went back to normal idol but every now and then at a red light it would randomly go up to 2000-3000 rmps. I made sure the pedel wasnt stuck so I dont know whats up. Advanced auto suggested an idol controler... anyone have any insight?