As long as the valve is functioning you can just clean it. As weird as it may sound the best thing to clean them with is oven cleaner. Spray it down with easy off and let it sit 20 minutes, rinse and repeat until it's clean.
Do not however spray easy off into the port on the intake manifold. If that port is plugged it will likely require pulling the manifold to clean it out. Much bigger job.
On the up side, the EGR is not required. It is emissions only so you can if you have to ignore the code and leave it. Unless you live in a place that does vehicle smog testing. Then you will have to fix it.
Thursday, January 9th, 2020 AT 4:04 PM