possibly a bad sensor of some kind

i tried searching for what i think may be the problem but i couldnt seem to find anything that convinced me.
somedays my jeep will run like a champ. but other times ill be going down the road at a steady idle and my motor will just cut out until i either give it gas or take my foot off the gas. also when it has this problem and im just sitting at a stop light it will run with a really low/rough idle like its going to die but never actually gets to the point of dying.
btw its an 87 with a 2.5L
the only things i have tried so far are new plugs/wires and new dist cap and rotor.

thanks for your thoughts.

Check out these threads....

http://www.naxja.org/forum/showthread.php?t=88331

http://www.naxja.org/forum/showthread.php?t=91733

thanks lou. those helped alot. i plugged my EGR and now i just need to wait and see if it happens again

Sounds a lot like my problem, you tell me. If i get it figured out, ill let you know, and vice versa.

http://www.naxja.org/forum/showthread.php?t=101809

possible bad ground or bad plug wires causing a crossfire/missfire????