Alright, well its late but I figured id see if i could gather up any other thoughts from you guys.
The issue lies within "Oscar" an 88 AW4 4.0L. Ever since purchasing it, ive have a "missing" condition at idle and while driving it likes to buck intermittently from around 1200-1750 RPM under light load, kinda while lugging the engine through the shifts...
I checked the TPS and even replaced it and the entire throttle body from a parts Jeep.
New (less than 1k miles) Plugs/Wires/Cap/Rotor
Same for the o2 sensor
Ive cleaned up and check over the Ign. coil but have a newer 1 on another truck I'm gonna swap and try out.
All Engine and Chassis grounds are clean, refreshed and tight
Cleaned and resealed the C101 connector
MAP, IAT, and Knock sensors check out ok
New Fuel pump installed less than 1k ago
I'm beginning to think something with the EGR system might be the culprit here. The truck drives great and has plenty of power under load and minus these two small issues. I just know theres something not quite right...
Thanks for any ideas fellas. I have a few other things i can toy with but it never hurts to gather some other opinions ;)