2005 Detroit 60 - check engine

Hi everyone,

2005 Freightliner Century - Detroit 60 VIN U83591
I got following code: DDC 82/PID 411/FMI 4 (EGR Delta Pressure Circuit Failed Low)

Check engine light is ON all the time and I didn't notice anything unusual. Temperature and pressure readings are normal.

Can someone tell my what exactly is going on and how much repairs might cost. I've already spend over $8000 on repairs this year (Turbo, EGR Cooler, Radiator, etc.) so please any help will be much appreciated.

Thank you in advance,
Ron

 

It was just a sensor. Total $91 including tax (no labor) at Freightliner and check engine is gone.