Possible Looming Transmission Issues??

[07JeepXK]

I think theres a calibration sequence you can do for the TPS. I wouldn't go throwing parts at it, especially for a system like ours that'll throw a DTC if throttle position doesn't match pedal position.

Matt. I was having a crazy idling issue last march and was told to replace the Throttle Position Sensor. I replaced the TPS and haven't had any issues since. I got the part for cheap and only took a few minutes to replace it. I didn't get any codes or anything from the bad TPS so I think it's worth a try for him to replace it since it's very inexpensive. It wouldn't hurt to eliminate the TPS as being the problem. I have the same year and engine XK as he does