Simm5
New member
Hello everyone. I have a question about the egr valve. So my cel came on a couple days ago so I got it checked and it was p404 egr valve replacement. And now today when I left work there was no light on. So my question is do I still need to change my egr valve or is it good? It's an automatic if that makes a difference. My jk is stock aside from a mild lift and 35s.
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