Why is my car idoling so high and how to fix it?

Question

since i bought my car over 2 years ago it idols high when i start it for a few minutes then it goes down but it just now started to stay idoling high from 3000 rpm's when i start it to 2200 even a half hour after i start it and it used to go down to 700 after a while. i have a 93 mazda mx6 and i'm wondering what is wrong with it, is it really bad for my car, and how can i fix it

thanks

Answer 1

Not sure about your specific model but most cars have an electronic idle control module. Consult a repair manual specific to your car for more info. By the way is there a "check engine" light illuminated on the dash? This would indicate some sensor or electronic control is most likely bad.

Answer 2

check the airways of the car, idle problems are mainly caused due to vaccuum lines...intakes etc...