After finally getting my ignition switch replaced, I now have an idle problem . I have the multi port fuel injection with straight 6 engine, and I believe that the idle isn't adjustable, not sure but there is a tag under the hood above the firewall that says curb idle and idle speed not adjustable. So where do I look and how to fix. The Jeep idles in park but after I shift into drive it dies and I have to keep my foot on the pedal to keep it from dying. Any ideas. Thanks!

 

Have you checked your iac? it could be bad.
The only way I have found to adjust the idle is to either bend the tab on the throttle body or the throttle linkage from the cable to the throttle body,it can be bent slightly.