Engine idle rough won’t past 2000 rpm
You have a problem. Best I can tell you considering as much information in your 7 word post. Post WAY more information and we’ll try and help.
19 year old Jeep, I’m not surprised.
The symptoms suggests that the camshaft position sensor is out of sync. The camshaft position sensor is mounted on the oil pump drive shaft, if the shaft seizes, the housing will rotate placing the CMP sensor out of time.
Inspect the oil pump drive shaft housing hold-down clamp for signs of movement.