Hello,

I have 2004 Dodge Intrepid with a 2.7L engine. Tonight the code P0121 poped up. I have found that the code means, Throttle Position Sensor/Switch A Circuit Range/Performance Problem. Can someone please give me some more detail of what the problem may be. I found a list:

TPS has intermittent open or short internally
Harness is rubbing and causing an open or short in the wiring
Bad connection at the TPS
Bad PCM (less likely)
Water or corrosion in connector or sensor

Is there a way I can figure out what it is on my own? Where is the TPS located at?

Thanks