Reply To: How do I troubleshoot electric EGR code P0400

[Jeff]

Thank you Richard. That is a tremendous help. I think that article combined with what I’ve previously learned should cover every aspect to find the problem. My only problem now is I just left my scanner 30 minutes away, forgetting about this project. I have a van window to replace. Going to be a busy night. And I have to find the correct diagram. 😖