95 seville sls

I've replaced my idle control, and my car still runs about 1300 rpm when i'm driving down the street. it reluctantly goes back to 700 rpms. when i
come to a stop. any ideas?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.