2003 Jeep Wrangler Misfiring during acceleration

I have a 2003 Jeep Wrangler that is bucking during accelearation starting around 2200 to 2500 RPM's through all gears. The bucking is if someone that does not know how to drive a manual transmission is driving and the rpm's will drop about 300 to 400 points, then bounce back. Acceleration is rough as well. Initially had a TPS sensor fault code and engine misfire code come up. Replaced the TPS sensor with no fix in the problem. 2nd check engine light came up with a faulty Camshaft position sensor. Replaced that sensor with no fix in the problem. I don't have any new codes but am wondering if it might be the Crankshaft position sensor. Any other thoughts as to what could be causing the misfiring and bucking? Thank you.