- Oct 21, 2021
- Vienna, VA
My EGR was definitely clogged and I had a rough idle, CEL with EGR codes. Yesterday after some highway driving above 80mph it turned off and hasn't come back in a day, idle is now smooth. I did not try any cleaner except some seafoam in the tank but that was a few tanks ago. Has this ever happened to anyone, should I still plan on renewing the EGR system or is it really possible in unclogged itself? I have been driving my 80 daily as opposed to occasionally for a week or so, only thing that's changed.