Peugeot 407 Fuel Pressure Sensor Issue

Those symptoms definitely suggest a fuel system issue. Check engine light, rough idle, and jerking acceleration are classic signs. A faulty fuel pressure sensor can cause those problems. Can you measure the voltage at the fuel pressure sensor?

I have a multimeter, but I don't know the correct voltage range I should see at the fuel pressure sensor plug. Can you give me the expected values or point me to a reliable testing procedure?

Getting precise voltage values without documentation can be risky. I'd suggest a qualified workshop. They'll have the right equipment and expertise to check the fuel pressure sensor and wiring properly.

Took it to a workshop as suggested. It was a faulty connection to the fuel pressure sensor. Repair was 95€. Thanks for the help!