Hey all new here just bought my first jeep/wj 2 weeks ago and I have been having trouble fixing this rough idling issue as the jeep is not throwing any codes.
replaced items:
Spark plugs.
Swapped to viper coils (ran rough beforehand as well)
map sensor ( disconnected old sensor and misfiring went away but jeep would die so swapped in new sensor and issue still persists)
replaced multiple vacuum lines and pcv.
Cleaned throttle body.
fuel rail replaced ( old one leaked at cap)
all Orings on injectors replaced.
Any help would be greatly appreciated thanks.