Greetings from Mikey at Just Answer!
The EGR valve is not closing fully. The sensor is part of the EGR valve itself. Replace EGR, clear the code and retest.
You can only buy the valve from a Chrysler dealer and its located on the back side of the right cylinder head.
correct. the pintle position sensor is inside the egr.
Thank you Josh. Yes the information is correct for 2006. They never resolved the EGR issues on this engine design. Even the current model cars are having EGR problems. You can expect to replace the EGR every 2 years or so.
Its not really the carmakers fault, the quality of our gasoline keeps getting worse as time passes and post-combustion system problems like this are only going to increase in the future.