1992 Chrysler New Yorker Fuel

try cleaning the throttle plate on both sides as well as iac hole , it's an oblong hole by throttle plate with choke cleaner. your plate may be sticking. there is a how to under repair and service on our site. it may say to remove throttle body but that doesn't need to be done.

No one bothered to follow up here, but to help others researching this topic, low idle speed on Chrysler vehicles up to around 2005, give or take a few years, "minimum throttle" needs a very specific set of conditions to be relearned after the battery or Engine Computer is disconnected. The procedure is very simple and is often performed without knowing you're doing it, then the problem seems to go away. For the whole story, check out this post:

https://www.2carpros.com/questions/low-speed-stalls#last