I own a Peugeot 206 (2008) with a 2.0 hdi engine (I believe the engine code is DW10TD) with a Siemens fuel system.
After changing the fuel filter, I turned it on and found it was idling a bit rough. After turning the key back off it kept on running for a few seconds before deciding to shut down, which is completely abnormal.
I read that this behavior might be due to a faulty sensor in the high pressure line, and my guess is there's air trapped interfering with this sensor. However my understanding is that this particular family of fuel systems bled themselves out without much intervention, by simply turning the key a couple of times before cranking the engine.
So my question is whether this guess makes sense and if it may be possible to drive it to the shop without blowing up expensive stuff. I didn't keep it running for long fearing the latter, so perhaps it would clear after leaving the engine running for a while?
Thanks in advance.