P0121 code I need help

[Mikes3rdGenRam]

I have a 2003 Dodge Ram 4.7L (cable throttle body). I have a P0121 code (throttle position sensor). just some info: truck is running really rough, it’s running rich and will turn off eventually .. check engine light is on and code says p0121 (tps error code) , I changed tps (twice) but also changed MAP sensor, PCV Valve, air temp sensor, changed spark plugs, changed idle control valve, changed crank sensor and cleaned throttle body. I made sure 5 volts is getting to the TPS and sufficient ground , only thing that I can really see is that my signal wire from the TPS might be acting up (because TPS signal jumps when at closed TB and when I slowly open the TB to wide open) - but can't be the TPS I changed that twice already with different brands. maybe it has to do with the tps signal wire? Any suggestions Has anyone ran into a case like this before. Thanks In advance ——

 

[Snake15eyes1998]

I would imagine you cleaned your throttle body plate right? Not saying this will fix the problem. Its cable from your pedal to the throttle body, that eliminates the pedal sensor. So, does it run rough on a cold start up? Or once it warms up?