Bad face edge error when opening CAD mode

Hi, I’m attempting to run a simulation on a car design for F1 in Schools. I’m using a setup I’ve used before, but I’m getting an error when I try to open the imported geometry in CAD mode to add the boundary box. It lists a face and an edge that are causing the bad face edge error, but I can’t seem to identify which edge it is, and I’m not really sure how I’d go about fixing it as in my CAD program (fusion 360) it is a sealed body.
Here’s the project:

Hi, thanks for using the forum!

This is the problematic face and the detailed explanation of the error from the CAD mode:

May I ask, did you model this as a solid or as a surface?

Also, please try to work the export tolerances of the STEP file, as indicated in the messsage.

I was using form tools in fusion to create the fluid shapes, and then surface tools to complete the body.

How do I tell which edge edge167 is?
Do you have any suggestions on how to fix this?