Question

My 2007 Chrysler 300 3.5L is not running more than 40mph and found the code p0660

Answer 1

HI there

This code is for the manifold tune solenoid, circuit condition.

This is usually the result of a faulty intake manifold tune solenoid, but can also be the result of a wiring problem.

Answer 2

P0660 CHRYSLER - Manifold Tune Solenoid Circuit Condition

Read more: https://www.autocodes.com/p0660_chrysler.html