no. That's a weird idea.
Clean the throttle body especially the IAC with carb or throttle body cleaner. While you have the throttle body off, look into the intake for a pool of oil. If you ahve it, then your plenum gasket is bad.
After you do that, see if it idles better. If so, you could seafoam through the brake booster vacuum line and scare your neighbors.
93 red ZJ 189k 4.0. Spent more money than I should have ...
Isn't red the only color a vehicle should be?
If at first you don't succeed, use more speed.