I have a 99 sl series stick shift. It is Idleing at about 3000 rpm. I've replaced my throtle position sensor and tried cleaningthe butterfly valve but have seen no improvement. Any suggestions?

1) Change engine coolant temp sensor (use brass replacement) and connector (Saturn only)

2) Vacuum leak? Spray throttle body cleaner around intake manifold and throttle body. Change in RPMs = you found the leak.

I agree..............................best place to start if your not taking it to the dealer.