Own a 2005 dodge dakota 3.7 6cyl Will start and run but tach goes to 2500 ?

What is your question?

Replaced many sensors still codes come up tried so many repairs..how can i get rid of this limiting rpms. Thanks

What makes this problem better or worse?

Runs great just holds at 2500

How long has your 2005 Dodge Dakota had this problem?

Weeks