i drive a '90 camaro rs v6 and in an idle state my rpms read 3000. by the sound of the car it is not that high. i also redline at 50mph. i talked to one mechanic and he told me that i should check the wiring to my rpm but i cant find a diagram to show me the wiring. if anyone has any other opinions on what they think it could be please let me know. your knowledge would be greatly appreciated.