Where does it comer from that parts store TPS units do not work? I have two Chrysler vehicles (03 TJ, 99 Durango) and are on a number of forums for both. TPS issues are very common on the Durango/Dakota/Ram and that is with the original OEM TPS. Myself and many others over the years have replace the Chrysler OEM TPS units with parts store replacements without any issues. My Durango one I replaced 8 years ago. I have had the TJ for 3 years now. I started getting a 0122 code for the TPS and replaced it 2 years ago with a unit from Pep Boys. No issues.
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.