ok a few weeks ago i noticed that my car was acting funny. check engine light pops up and its the crankshaft position sensor. cool i went out and bought another one. well the problem got a little better but i still have the problem. car will rev in neutral at about 1,5-2k rpm and when it feels like it thats when it slowly drops down to normal, and whenever this is occuring and im shifiting gears the car idle stays up whereever i happen to change the gear at. please help me out some thanks.
