How do I lower engine idle speed,or what part needs replacing? Rpm is 1500

Thanks for your reply. I have checked for that using a can of starting fluid and spraying around vacuum lines to no avail. But, I will try again as that has been suggested a couple times. I live in a remote area with no mechanics that can deal with this so I'm groping in the dark. I thought of unplugging certain components when its running to see if that shows me the component problem.

Try cleaning throttle body and idle air control with carb. cleaner. GOOD LUCK.