2000 Dodge Dakota - V6. Low idle + lope. Need Help!?

take it to auto zone and let them scan the computer for a trouble code, at least this way you,ll have something to go on,and its free ,this way you wont be buying parts for it that you think you need, you,ll know for sure once you get a code to work with,that's really the best and cheapest way out of this,the most likely cause of that happening could be a bad throttle position sensor but have the scan done first,good luck with it.