1994 lesabre stalling

Have been having this problem for quite some time. Car runs fine and then just out of the blue, the engine just shuts off. Usually happens when I am coming to a corner with my foot off of the gas. Stalled the other day while driving into my garage, with foot on the brake idling. Have in a shop right now. Checked for codes and all kinds of the show up. (egr,park netral switch, and others. Changed egr with no luck. Car always starts right back up. Runs great, but stalling for no reason. SES light comes on and goes off. Anything that I should look at. Mechanic that is working on it figures his code reader might not be able to read this car.

This has been asked of many others before, therefore you will find your answer by searching for other posts that address stalling. Just search for "stalling" and then after reading those posts search for "stalls" and try different other variations. The answers to the problem are usually similar, in that it could be one of several more common problems.