[seanc]

Mine also has this coming up occasionally now it's being driven again - EGR low/no flow detected.
Early August I cleaned the EGR in situ as best I could (just as preventative maintenance), at least so the rod inside was free of gunk on and around it.

I also had a TMAP boost sensor pop up a few days after the EGR message. I changed that in 2018 roughly 40k miles ago, I doubt that's faulty but it could be. I'll see if I can check it with VIDA when I have time.

I've read a few posts that reference the DPF pressure sensor could be at fault. I've never had that replaced so I'm tempted to replace that first. 2012 D3 5 cylinder, just clocked over 140k miles.

Prior to these errors I was getting turbo overboost errors, I think that's resolved since I replaced the turbo actuator/valve that lives at the back of the engine bay with 2 hoses small going into it.