Skoda Octavia Diesel Engine Troubles

Sounds familiar! I had a similar issue with my Octavia a while back. Check engine light, rough running, and occasional stalling. Is it worse when the engine is cold? For me, it turned out to be a faulty fuel pressure sensor. Before you replace it, though, have you checked the wiring and the plug connection to the sensor? That can often be the culprit.

Good shout! It does seem worse when it's cold. Where exactly is the fuel pressure sensor located? Is it easy to get to and check the wiring myself? I'm fairly handy with a multimeter, so I could test the connections if I knew what to look for.

Yep, sounds exactly like what I experienced. The sensor is usually located on the fuel rail, so it should be relatively accessible. Honestly, while you can check the wiring and connections, I'd recommend taking it to a workshop. They'll have the proper diagnostic tools to confirm the sensor is faulty and can check the fuel pump pressure to rule out any other issues in the fuel system. Better safe than sorry, especially when dealing with the fuel system.

Just letting you know it's sorted. It was a dodgy connection to the fuel pressure sensor, like you thought. A local workshop cleaned the contacts and secured the plug. Cost 95€, which is a relief compared to a new fuel pump! Thanks again for the help.