Since you said you changed the valve, I would move to the connector on the solenoid and make sure it is seating properly and not dirty at the contacts.
Testimonial: "I will try that and see if it make the trick. Thanks."
P0406 Chrysler - Exhaust Gas Recirculation Position Sensor Circuit High
Possible Causes:
- Faulty EGR volume control solenoid valve
- Carbon built up on EGR valve
- EGR volume control solenoid valve harness is open or shorted
- EGR volume control solenoid valve circuit poor electrical connection
- Faulty EGR temperature sensor and circuit
Did you replace the EGR valve, or the volume control solenoid valve?
If you need further help, reach me via phone at https://www.6ya.com/expert/daniel_4061c3d97c12c4c7
Testimonial: "Hi Dan, I change the EGR valve and the two gaskets. One is metal and the other is more like fiber."
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