Skoda Praktik rough running issue

The symptoms you describe do point towards a fuel delivery issue. The fuel pressure sensor is a prime suspect. Before replacing it, have you checked the wiring and connections to the sensor itself? A loose or corroded connector can cause similar problems. It's like a loose wire on a lamp – it might flicker or not work at all even if the bulb (sensor) is fine.

I haven't checked the wiring yet, as I'm not very experienced with car electrics. Is there a way to check the connection without special tools? Where is the fuel pressure sensor located on my engine?

Given your lack of experience with electrics, and the fact that the error code points directly to the sensor, the best course of action is probably to take it to a workshop. A defective cable or plug connection is a likely cause, and a professional can diagnose it properly and replace the faulty parts. It's better than risking damage to other components. Think of it like a doctor diagnosing an illness – they have the tools and expertise to identify the root cause.

It was the fuel pressure sensor. The workshop found a faulty connection, just as suspected. They replaced the plug and sensor for 95€. The engine runs smoothly, and the check engine light is off. Thanks for your help!