P0123 Code

My wife washed the Durango engine (oh nooo) last week and was rewarded with check engine the dreaded P0123 high voltage at TPS. The code will not clear out. The TPS was only a month old when this happened. I do not see any obvious damage to the TPS wires. I am not sure how to check voltage at TPS. (which wire should carry voltage? Just one wire?) The car is not running bad car is not idling bad - it will die if revved up and rpms are suddenly dropped.
Does anybody have any ideas

Was it a Mopar replacement part or generic auto parts store unit?

Did you wash the motor? These TPS do not like water the sensor could be full of water and causing the high voltage issue. If it is still under warranty try to take it back and get another one.

It was not a MOPAR sensor. I will replace the sensor again and see if the code clears.

DONT BUY A NEW SENSOR!!! first you should investigate all the plug connectors. i had the very same code with "bucking" in my 03 wrangler within 4 months of buying it brand new. the morons at 3 different dealerships couldn't figure it out (in spite of me telling them that it only does it in the rain). one day i decided to unplug EVERY plug on the jeep and investigate. sure enough i found a multi-pin connector on the firewall that had a bunch of crud in it. i cleaned it with isopropyl and a toothbrush, gobbed it full of di electric greas and haven't ahd the problem since. do yourself a favor and investigate the problem before throwing parts (or dealerships) at it.

SEEING HOW DEALERSHIP TECH'S ARE MORON'S WHY DONT YOU GET A JOB THERE
AND LETS SEE IF YOU GET LUCKY AGAIN ON FIXING OTHER CARS! AND YES THOSE THROTTLE POSISTION SENSORS DO GO BAD ALL THE TIME!

Just another driveway hero who got lucky after going through his own wiring harness himself! Here's hoping the WM blocks him. Just because you lucked onto what you hope is a successful repair doesn't make me a moron or give you the right to assume all dealer techs like myself are all the same. I understand your frustration but intermittents are the most difficult symptons and codes to track down. Any sensor or actuator or circuit on the pcm side can short and throw all kinds of weird faults including the tps, case in point the clockspring shorting thorugh the speed control circuits throwing tps faults. You can be proud that you repairred it but it doesn't make you an expert on all things jeep or OBD2. don't come on here slanging us because of your unfortunate experiences